Limbo Relationship

Toxic relationships seem to swoon me it seems. There is this guy I have been talking to since May 2019. We started officially being a couple in October. But I broke up with him because he was flaky, took forever to become serious with me, and he when he gets really angry he screams at me to shut up and a lot of other hateful things. BUT the sex. Oh the sex. Is phenomenal. It always seems to be that way... when the men are awful in every aspect EXPECT with sex. Smh. I dumped him. But we still fool around and see each other weekly. Am I wasting my time?? How do I end it truly? It’s so hard (no pun intended)