New, after what happened to you, how could you trust other people from the beginning? That being said, you have to give them their chance to earn your trust...
What you are describing is understandable, but risky. The problem is by acting this way, you expect allmost the impossible of people (pushing them away while hoping they are gonna like you)...to which they ofcourse fail...making you think that once again it's proven people can't be trusted and don't care. I know this may sound hard...but IMHO it is important to let you know, please don't be offended by me telling so.
(and if you are, let me know, will ask a mod to remove the post)