I didn't stick Jon on her roommate prompt first time around because I didn't want to saddle Dany (really, mainly you, as a player) with his moon eyes and general protectiveness that early on, but he would probably go in that direction given the opportunity (or it might be funny for him and Drogo to get stuck rooming together, IDK). (Also, things would have been super awkward early on because of that info-bomb he hadn't delivered yet... he would have constantly been giving her pained looks from across the room.)

Realistically, it will upset him when something inevitably eventually happens to her, but he also probably wouldn't be as interested in her if she weren't the kind of person to get into the thick of things.

He'll keep teaching her knife fighting, of course! He could get surprisingly harsh with her? He's capable of really knocking someone around if he's not careful not to, and there are some pretty good references for him teaching people to fight in both the books and the show. He can also help her with arrows when they're in an arrowy setting. (I mean, wrt to this and his admiration of how pro-active she is, he's the guy who had a sword made as a goodbye gift for his tomboyish little sister.)

He is also REAL MAD about that spy.

Basically he's always there for whatever you want him to do with her, but I'm also trying to make sure there's room for both of them to have other CR!