Dude, you have another thread open about this already, and it's pretty current, lol, like it's up here with recent responses.
People can be shady man. If you think you're friend is not being a good friend, just don't hang out with him anymore man. As simple as that. Hang out with some other people. Common now, no need to start multiple threads because some dude told a girl taht you "like her". Even if this was a punk move, it still wasn't the reason you didnt' get the girl. As the guy above said, dont' be a p**sy and man up a little bit and go after girls you like instead of talking about them with your friends.
I personally learned a LONG time ago to keep my mouth shut when it comes to who I do or don't like, as your "friends" might be influenced by it. If I like a girl, I will make an actual MOVE on her, not with words, but make a move on her and run game and kiss her and try to bed her lol, I won't "talk" about it or tell her I like her. She should be the first one telling you those things.
As with the whole "friends" thing, just dont' hang out with someone you think might be disrespecting you. Get MORE friends, if you had 20 friends, you wouldn't care that one of them was disloyal, just move on. And do NOT give them ammo man... keep that in mind... never tell your friends your deepest fears or secrets, as they can eventually use this against you if and when the relationship goes sour. So keep most of the sh*t to your self as far as private things, your flaws, your deep secrets, all of that,, and keep friends on a "fun, sport topics, jokes, and what not" dont' give them ammo that they can use to shoot you down in the future, because if the situation changes and things go sour (which a lot of times happens in friendships) they will use all of it against you and then some lol.
Also, never let your self be punked in public. If someone outright disrespects you, take 'em down man. Call them out on it and if they do it again straight up beat them up.... lol.. I'm not even kidding!! Sometimes you have to stand up for your self!! Even if they are stronger, just swing at them, they might beat you up, but at least you stood up for your self.. Hell, I'm 30, but if it comes down to it, I'd throw down in a second if it means protecting my reputation and not being punked..