What should I do about this "situation"?

Well it seems that she really likes the guy, and it seems that she just wants to be FRIENDS. Just because she uses your legs as a footrest or wants a hug to warm up doesnt mean she likes you. It's just what some people do. I think your a little to obessed with her, and you might want to take a break from being friends with her. Cause its only going to get harder, because you like her so much.