I've been dating this guy for about three months now, and I don't think it is going to work. He is too emotionally needy and not sensative enough towords me. To make things worse he recently got high and kissed his best friend, who he sees more than me. We have a lot of mutual friends and a bad break up would be worse for me, any tips on getting him to leave me or break up withought a big fight?
Just be frank about it. Problems pile up when you refuse to assume your feelings. So just let him know that you are not interested anymore. There is no reason for a bad break up, or to fight, if you stick to your position. Do not make recriminations, but give him some explanation, if he wants some. Otherwise he may keep pressing you.
I've been in the same situation you're in before with regards to having a lot of mutual friends, but it's still probably not the best idea to try and get him dump you.
I will say to be fairly careful on what you do though, because if he's really emotionally needy, it may not be easy/possible to break it off without too much conflict. >>2 has good advice on that matter, but don't take it too hard if you try that and it still ends up ugly.
Just be frank about it.