I wouldn't say that being desperately hurt by others and suffering the consequences of that would qualify you for a personality disorder. you are just going overboard to keep yourself safe. I understand completely. I had a dear friend in jr high do something similar to me and I swore I would never open myself up to be hurt again. I only now feel like I have friends again some 30 years later and they happen to be the people I work with. I am agoraphobic and never go out because the world is unsafe. but I have never considered myself antisocial. I get along with the people in my own little world just fine.