Hi Sunshine
First, I would try not to take any of this personally. Most of the time the way people react to us has much more to do with them than it does with us or anything we do. So try to remember they are sick people with their own problems. How they act around you really is more about them than it is about you.
Real friends would talk to you about any problems in your relationship. They would make the effort to communicate with you if something you were doing was bothering them.
I wouldn't give these people a second thought.

Take time out to feel better about yourself, to heal, if that's needed. Other wise, just keep on looking for groups and friends who are kind, supportive and thoughtful towards you.

When you find you are getting that from someone try to be reciprocal, unless you really do not like them. Don't be a phony. Look for real friendship and give real friendship, when you find it's happening naturally in a two way street, you have a true friend. That takes time and effort. There will be more unsuccessful attempts than successful ones. But when a real friend comes along - that's a keeper, it's rare, so enjoy it when it happens, but until then consider it part of a process of getting to know people. Don't take things personally and remember that even in every failed friendship, you learn something about yourself or other people.