She broke up with you over selfish reasons because her feelings mean more to her than the relationship. She doesn't give a fuck about your feelings, she just wants to be dolled up by feel-good words that you don't feel comfortable saying because of the situation your relationship is in.
Near the end of the relationship she constantly harasses you for "not loving her enough", CONVINCES herself that you don't love her. She then proceeds to get with another guy within a week. You're left wondering what you did wrong, and why she's such a fucking selfish bitch.