Wow Haaum. I have the same problem. I always feel pretty worthless when I "fail" at the girlfriend/relationship thing. The thing is, it's not my fault. It's not YOUR fault. It's so easy to blame ourselves and feel like we didn't do enough to make it work, but the truth is we did all we could. I get in this head space where I feel so abandoned that I push people I care about away. It does make having a girlfriend that much harder when I get hurt so easily. So, I don't know if it makes you feel any better to know that you're not alone, but believe I understand.