No that isn't weird, it just simple jelousy.
it is only weird if you make it weird. to her friends it may show your not afraid, and give a plus on their idea of a "good" boyfriend to her. So yes & no it is a bit weird.
He is either showing you a sign that he moved on or he wants to make you jealous to hurt you. If you guys are staying friends and not away from each other then he wants to show you you two can be friends and that he moved on. If you guys were away and glares at you in a weird and mean kind of way that can be that he wanted to hurt you to make you jealous and hurt how you feel with your emotions to show that he is a jerk.
It shouldn't be if the guy loves her back.
The question here is what have your friends told you about kissing? That she's a weird girl or that she must be disgusting to kiss or that kissing is unhealthy? Whatever it is, if this is your girlfriend and you care about her, who cares what your friends say? Ridens hit it right on the nose. It's always awkward early in a relationship. Stick with it, and don't worry what your friends are saying. They're probably just jealous.
Only if she attempts to exclude you. All your friends should now be mutual friends.
You have to teach your friends girlfriend great manners and see if you care of her and also if you care of your friend you should make him happy and don't make the girlfriend break up with him because your friend wouldn't talk to you anymore and if you don't show the girlfriend you have manners and care then she will think she has a awful weird boyfriend because of his friends ( this means you ) so, all ways treat the girlfriend with care and manners i hoped this helped :D
No. Just tell your best friend that he is taken. It is her decision from there.
weird
Yes it's very weird and it shows a sign that he kind of wishes she was her boyfriend not yours but it depends on the case like if your younger yes if your older not really unless there flirty text
He's jealous
Yes, that's weird. And a pretty lame excuse, also.
NO!