17. I thought she was perfect for me; we had the same loves, same hates, and same outlook on life.
Then I realized 'I hate myself, so why would I wanna go out with someone who's basically me?'.
I broke up with her because it turns out she was hiding all kinds of crazy traits from me; like she'd constantly fish for compliments (which is a horrible characteristic in anyone), obsess about her weight despite being slim and had terrible taste in music...
Okay, that last one's a little shallow, but I mean really poor taste in music.