The relationships of Ruffnut throughout the How To Train Your Dragon series.
Family[]
Tuffnut Thorston[]
Ruffnut and Tuffnut have a strong love/hate sibling relationship. Although most of the time quarreling and fighting over trivial things in life, they show an inseparable bond with each other and rarely spend too much time apart. They both enjoy the feeling of pain, especially if the pain is inflicted from each other.
As twins, Ruffnut and Tuffnut share a strong invisible connection with each other. They have the ability to understand each other's thoughts and ideas without speaking, as shown several times to finish each other's sentences or to have the same idea at the same time. They also have the ability to stay together as they are rarely too far apart for a long time. Wherever one twin goes, the other twin is never far behind, even if they intentionally try to stay away from each other. Ruff and Tuff also work incredibly well together (when they want to) and can synchronize themselves to do the same actions at the same time. It's also possible that they are able to sense where the other is and what happened to them, as other twins are able to do.
By the time of Dragons: Race to the Edge, the two do not fight as much as they used to. Ruffnut shows her care for her brother when she tries to prove to him that he is not turning into a Lycanwing. Later, she said that her brother was the most important thing in the world to her and that she refused to spend her life doing anything without him. Ruffnut also hugs him in relief of her brother finally being safe in "Bad Moon Rising". In "Edge of Disaster, Part 2", Tuffnut gets worried and anxious for Ruff when he sees her get kidnapped by the Dragon Hunters, and is willing to do anything to save her.
Friends/Allies[]
Barf and Belch[]
Being their dragon, the twins had to share riding it. The twins care tremendously about their dragon, although not as much as Hiccup cares about Toothless. One head is loyal to each twin (Barf and Ruff, Belch and Tuff) and on occasion, the heads will fight each other when the twins fight each other. Usually, the heads will work in unity if they feel that their Riders are in danger and feel that their rider's constant quarreling is annoying. Both dragon and rider are willing to risk their necks to save each other. Tuffnut even states that Barf and Belch is his "totally awesome dragon" that he shares with his "totally un-awesome sister".
Several times during the TV series, Barf and Belch are seen to be extremely protective of their riders when they are in danger, as shown as they are willing to fight a Typhoomerang to defend Tuffnut in "Zippleback Down", as well as leaving the cave to search for Ruffnut.
Despite specifically being Barf's trainer Ruffnut does, in fact, care for both personalities of the dragon. During the events of "In Dragons We Trust", Ruffnut is shown hugging both Barf and Belch farewell, after Mildew's trickery gets all dragons banished from Berk.
Fishlegs Ingerman[]
As shown occasionally, Ruffnut, along with her fraternal twin are seen to bully Fishlegs because of his size, although Fishlegs bests both of them in terms of knowledge, and this leads them to find it annoying that Fishlegs knows a lot of things. However, in "A View to a Skrill, Parts 1 and 2", Fishlegs attempted to find Ruffnut and her twin after they were blasted out of the sky, along with Meatlug but ends up over-exhausting his dragon. Even so, he offered to join Hiccup on his search again and shows worry when Hiccup tells him that he couldn't find any sign of them.
Although being slightly annoyed at them at the start of the episode, "Free Scauldy", Fishlegs complimented Ruffnut for her great work with Scauldy.
Three years later, Fishlegs was inadvertently married to Ruffnut when her brother said he studied under Berk's officiator. Fishlegs was annoyed when Ruffnut brought a dead shark, tossed his dragon models out, and pushed out Meatlug. Though Fishlegs was relieved that he was not officially married, he was touched when Ruffnut kissed him on the cheek in "Snotlout Gets the Axe". But in the last season and last episode of Dragons: Race to the Edge, it is shown that he and Snotlout are fighting over Ruffnut at the end of the episode.
In the second film, Fishlegs and Snotlout are now competing for Ruffnut's attention, although you can see Fishlegs is jealous, as well as Snotlout, when Ruffnut starts flirting with Eret, Son of Eret.
In the threequel, Ruffnut rambles on to Grimmel the Grisly about how she's conflicted over Fishlegs and Snotlout. By the end of the film, Ruffnut sees Fishlegs tear up at Hiccup and Astrid's wedding and tells him that he wins and that she likes sensitive guys.
Ten years after the events of the third film, Ruff and Fishlegs are still romantically involved as seen in Homecoming. He puts his arm around her while she points out an axe she'd like for Snoggletog. Later during the Snoggletog Pageant while working together as stage hands, they flirt with each other, and are finally seen kissing on the lips. It is uncertain, however, if they had ever gotten married.
During a brief appearance in the following special Snoggletog Log, Ruff blows kisses at Fishlegs from across the room, and puts her arm around him at the end when they partake in eating Gobber's mutton soup.
Hiccup Haddock III[]
Most of the time, Ruffnut follows Hiccup's commands, although not always done in the right way. On occasion, she disobeys him or misinterprets his orders. Despite Hiccup doubting her abilities most of the time, he acknowledges her abilities to work together if they want to.
In "Zippleback Down", he gains respect for her and her brother when they figure out the idea to "fight fire with fire" and Tuffnut's ability to train Torch. Although finding her, along with her brother annoying from time-to-time, Hiccup is shown to care for them as he and the other Vikings in "A View to a Skrill, Part 2" attempt to find them after their disappearance and were relieved to find out that both of them were okay. In the same episode, Hiccup also acknowledged their decision to follow Alvin's ship to spy on him.
Although it is hard to tell, Ruffnut cares about Hiccup, like when they, along with the other Riders, were very happy to see that he was alive after the battle with the Red Death in How to Train Your Dragon and when he fell down a hole and came out okay later.
In "Portrait of Hiccup as a Buff Man", she found the painting of Hiccup very attractive, however, she wasn't as vocal as Astrid.
In How to Train Your Dragon 2, when Hiccup ascends to become the new chief of the Hairy Hooligan Tribe, Ruffnut can be seen cheering for him.
Astrid Hofferson[]
Although they rarely interact in the show or movie, they remain neutral to each other and will work together when it comes to it. Most times, Astrid will get angry if she, along with her brother does something wrong, especially if it's because they're not paying attention or just being silly which frustrates the twins to no end. Like Hiccup, she doubts their abilities as dragon trainers due to their inability to pay attention, although it is assumed that she gained respect towards the twins when they put out the fire and trained Torch in "Zippleback Down". Although Astrid is never shown on-screen to hit Ruff. On occasion, she will punch Tuff if he angers her. It is assumed that Ruffnut and Astrid are on mutual friendly terms as they are the only girls in the group, however, they get along quite badly.
Astrid was one of the Vikings who attempted to find the twins after they were blasted out of the sky by the Frozen Skrill. It is presumed that off-screen, she had attempted to find them although Stormfly soon grew exhausted, showing that she does indeed care for the twins, as seen in "A View to a Skrill, Part 1".
In "Edge of Disaster, Part 1" and "Edge of Disaster, Part 2", Astrid was forced to work with Ruffnut and Tuffnut to create more defenses for Dragon's Edge. Astrid was not pleased by this and was further irritated by the Twins' incompetence. Eventually, it got to a stage where Astrid lost her patience and began to berate them. Ruffnut, who was fed up with Astrid's constant criticism, began to scold Astrid for her high and mighty attitude and ended up mortifying her. Astrid eventually apologized for her behavior and they made up. In "Shell Shocked, Part 2", Ruffnut hugged Astrid and appeared to be very happy about Hiccup and Astrid's relationship. However, when the two kissed on their wedding day she seemed disgusted before Fishlegs embraced her.
Snotlout Jorgenson[]
Snotlout and Ruffnut, along with her brother Tuffnut share a close relationship. Often times, the twins will follow Snotlout, as shown in Dawn of the Dragon Racers, where they listen to Snotlout's plan to cheat in the competition against Hiccup and Astrid, as well as act as one as of his supporters whenever he bullies Hiccup and possibly Fishlegs as well in the first film.
Snotlout often thinks the twins are incredibly dumb and in return, they sometimes exclude Snotlout from their ideas. Although sometimes siding with Snotlout, they occasionally bully him back, as shown in "The Flight Stuff", where they fooled him into thinking he was dying. It is presumed that Snotlout had attempted to find the twins — as stated by Hiccup — as in "A View to a Skrill, Part 1", after they disappeared after being blasted out of the sky, which shows his apparent caring personality towards them.
In "Bad Moon Rising", Ruffnut convinced Snotlout to be of assistance such as when he helped her prove that her brother was not bitten by a Lycanwing despite suffering bad effects of numerous bites. She then somewhat forced him against his will to be subject to the numerous bites, which Snotlout seemed to have only feeble objections to.
In How to Train Your Dragon 2, Snotlout is shown to be flirting with Ruff, although she merely grunts in annoyance and flies away. Snotlout is also one of those responsible for saving Ruffnut during the war, when she falls off her dragon, although Fishlegs also plays an equal part in her rescue.
Stoick the Vast[]
Stoick is well aware that the twins are capable of causing dangerous accidents and pranks, as well as notorious for causing mischief, andb thus regards them with caution. Ruff and Tuff show a level of respect for Stoick, possibly because he's the chief, but also like to make fun of him when he's not around. He's the one who possibly created the saying, "Where there's smoke, there's the twins," in the episode "Zippleback Down". In How to Train Your Dragon 2 along with the other Riders, she searches for Hiccup being enforced by a worried Astrid, against Stoick's rule of no dragon flying while Drago is preparing for war. She also, along with the other Dragon Riders, Valka and Eret, Son of Eret, cries after Stoick's death as well as at his ship burial. She fires a flaming arrow to Stoick's sailing ship in honor of her chieftain legacy, and out of respect.
Eret[]
When the Riders were in the midst of rescuing Hiccup and Toothless, Eret shot a net at the twins and Ruffnut instantly fell for him as evidenced by the way she said; "Me likey." in slow motion.
This is also shown when she is willing to become Eret's prisoner when she says (in slow motion as well); "Take me." while throwing her hands up in the air (while Tuff stares at her like she's crazy) followed by her and Barf getting caught in Eret's net. On Drago Bludvist's ship, she gazes in awe of Eret's muscles as he sets Stormfly free from Drago's trap. It is also shown when Astrid and Stormfly capture Eret, Ruff immediately wants Eret to ride with her, but instead, Eret pulls away, so Ruffnut's bites at the air. In another scene, Eret has shown some respect to Ruffnut when they work together for a couple of seconds when Eret asks Ruff, "Is anyone coming?" She simply replies back, "I don't know, just keep doing what you're doing." Ruffnut and Eret's relationship seems to be respectful, but in an awkward way, although Eret does count Ruffnut as a friend.
Heather[]
When Ruffnut first met Heather in the old series they didn't interact much but seemed to be on neutral grounds. When Heather showed up again three years later, however, Ruffnut was shown to be deeply impressed by her. Despite Ruffnut's warm welcome, Heather never really bonded very closely with her, choosing to become best friends with Astrid instead as they shared more similarities with one another.
In "Edge of Disaster, Part 2", Ruffnut headbutted Heather and later received a punch in the face from Heather as payback.
Enemies[]
Viggo Grimborn[]
Since Viggo is an enemy of the Dragon Riders, it can be implied that Ruffnut dislikes Viggo to some extent. However, she and Tuffnut think that his name sounded cool before they met him.
Grimmel the Grisly[]
Ruffnut enjoys annoying Grimmel strongly, making comments about how long his face is (and how small his brain is), her love life, her hair, and her diet.