Just my two cents worth:

Yup. You've been thrown a pretty damn horrendous ordeal with your ex and his abusive ways; as well as your friend who treated you like crap. I'm not denying nor undermining the experience you went through.

However.

You do view the world and people negatively; understandably; based on this sad experience.

You stated: "people where I live tend to be mean". This is a rather swooping general statement.

Unfortunately if you project this view on the world with people you do meet in your area; you'll find it difficult to make meaningful friendships.

I'm trying to sense what sort of interaction level you get with people. Do you work? Belong to a library? Go to a gym etc.