Objectively, if I look at my significant relationships I did really well. My two high school girlfriends were beautiful and smart. My college girlfriend was beautiful and smart and the lady I dated before STBXW was beautiful and smart -- she just had a drinking problem.
Why do you define yourself in terms of other people? Once you stop doing that ... maybe you will find peace.
And yourself.
Everybody hurts. It's part of life. Don't miss the good stuff.