Why would a guy open a girl's bag without asking her?
#1 He is thief. #2 Cross Dresser. I'd keep an eye on this one, In fact I'd keep two eyes on this one Your in a world that has alot of pretenders, people that arent what they seam. There's better actors out there that all of Hollywood put together. Good Luck!! maybe because he hasn't been told by you that it is very rude to do so. He may have been brought up to look for items in siblings/peers bags and think this is normal. Set out guidelines for acceptable behaviour and hide things elsewhere you dont want him to see.