I think Hiccup and Astrid are the best animated couple ever.
I love how their relationship isn’t a major plot point for the films. Astrid isn’t there as a reward for the hero, she is also his best friend (next to Toothless of course). She didn’t stop being a warrior after she became a love interest (and Hiccup wouldn’t want her to, he loves her for it).
They talk about their problems. They fight their enemies together. And they trust each other.
Something that I’m just noticing from these gifs. They actually lean their cheeks into the kisses, opposed to just letting the other do all the work. That’s something actual couples do when they know each other well enough to know it’s coming. I love this.