<human>: He would project all of his insecurities on me, freaking out and getting defensive and offended over really innocuous stuff. He was jealous, loathed himself, and I think hated everyone around him a little bit as well for no real reasons. He broke up with me while we were both naked in bed, waiting of course until after we'd had sex that morning. He kept me strung along for two months after we broke up under the guise of 'just needing therapy to sort his shit out'. When I needed space from him to mourn the end of the relationship, he kept contacting me. When I told him I needed to remove him from facebook so I wasnt obsessing over things, he accused me of trying to manipulate him. He would waver in between flirty messages and completely ignoring me when I initiated contact. He was a self absorbed, neurotic, insecure, weak willed man. 

I know objectively that I don't like this guy. He's a complete knob. But a stupid part of me can't let go of how much I liked the other version of him, before all of this became obvious. How do I change that? Do I keep reciting these things to myself until it sinks in??

I need your ideas people. I need them badly.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Ex was a dick. I'm struggling to retrain my heart from still having the fuzzies for him. Need help.