Depends on how trust worthy she is. Also if she like the girl you like.
If you do not like him then yes, you should.
Well, it depends on if you like your girlfriend, if your best friend is a girl, then trust me she should like you back.
you should realise him that the girl is not right for him and he should move on in life.
I'll satisfy my best friend that girl is not for you and girl is interested in me.
Root her whilst she's still warm!
You tell him how you feel maybe it will work out!
and if i do kiss a girl can she give me a hickey when she kisses me back
if you really like the girl, you should just talk to your friend. you may never know, your friend might be just fooling around. Don't hesitate to express your feelings to the girl either. if you are meant to be together , nobody can stop it..
Talk it over if you want to stay friends.
Tell him she sees him like a brother , or just as a friend , or she likes someone else.
Talk to him about it. Why should a girl break up a friendship of two guys?
Of course you should. I'm a girl so I know this stuff. You should believe your best friend no matter what. And girls hide their feelings when they think the person they like doesn't like them back.