Feels like I've been used, now everyone is being send offs.

[Bяian ♪]

The ones who were your close friends, talk to them man. Ask them up front, 'do you have a problem with me'? 'is there something I've done to put you off me'? In most cases since you have asked them face to face they will just come out with it and say yes, and tell you the problem or no and say your welcome to still hang out with us. They might want to hang about with other guys but that doesn't mean to say they don't like you anymore. Maybe they think you don't want to hang out with the other guys and they have made the choice of them over you. If that's the case then they don't see you as close to them as you thought they were and all they wanna do is hang out with the 'cool kids'. It sounds like your choices are, sort out your problems and hang about with all them including the kids you ain't too keen on, or simply go with principle and find new friends who will remain loyal to you.