How to get over the kids father ?

Hi Single Moms,

I’m curious if anyone has great advice or anything that worked in getting over a man you really loved that hurt you so much AND is the kid/s father ?

He cheated on me a lot. Kind of a sex addict and drink a lot. But we had a family and I stood by his side with all of his apologies and guilt but he wouldn’t give me a pass to remain hurt or angry. In fact he would use it to cheat on me more. Then flip it and blame me. I tried everything .... I don’t feel loved or valued by this person and I want to move on. But I think about him so much. I miss making love and I see him in our children.

But I hurt so bad and I want to let go. I don’t deserve it at all and I need to move on. I have to. Any help ?