Have sex with him and make sure his girlfriend knows, then he is all yours.
make your girlfriend jealous
Jealousy. There's a chance you don't even like him like that, you just don't want to lose him as a friend. Try to figure out which emotion it really was, then act accordingly. If he's really your best friend, he'll make time for you as well as his girlfriend.
Girlfriend/Boyfriend is someone you have sex with, a friend is someone who has a friendship with you.
make sure it isn't serious.
date her BEST friend.
Doing that doesn't make you much of a friend. Does he know how little of a friend you really are?
It will not make your girl friend happy.
Go with them and make him a friend.
because your best friend is not your best friend.......and well often people want the forbidden fruit, i.e. their closest friend's girlfriend........i suggest you break up with that girl and find a new friend as well.
Tell her that you want to be just friends. Communication is key!
make an ccount on facebook and add her as a friend then you can chat lolz
You should not lend money to your friends; if you do, either you will have to bother your friend to repay the loan, which will make your friend resent you, or your friend will not repay the loan, which will make you resent your friend.