downcaste

I was on a long drive yesterday and had a lot of time to think. I realized that I really haven't that none of my relationships ( friendships included) have been satisfying for about 6 months since I broke up with my gf. It doesnt really depress me because that has been going on all along. Its just more of a question of what it means. What do I need to change to make it different. Is it my fault that people have been treating me like crap? At least for now I need to learn how to open up and meet new people. Its kind of hard to know where to start since my trust was really damaged when I broke up.