I'm in a relationship that's going great, aside from the fact I constantly accuse him of cheating, or not being seriously committed... I yell, form ridiculous theories, search through his shit... He's getting annoyed, and I really want this to work. How can I be more secure in my relationship? I have such a deeply rooted fear, that is directly correlated to my personality disorder. I get sick with anxiety when he doesn't text after a few hours. How can I overcome this? What has helped you?