Got dumped -ish

I left my ex because he was so up and down. One day he was like I want to marry you, you are the best then the next day when things went bad he had doubts. And we would break up and get back. He said he lost sexual attraction and he has been looking at other girls. And he hates himself for it, but can’t help it. And I feel stupid for still wanting him, can someone just take my phone away and help me get over him and move on. Our relationship is so toxic and we both disrespect each other. I hate it and I hate myself for wanting it still…