Please give me advice🥺

The guy I love so damn much, the father of my two beautiful babies started doing drugs 2 years ago. It got so bad I had to make him leave 3 months ago. He promised to turn his life around when he left & be the once amazing man I used to know. He has physically and mentally abused me every single day the past two years & just admitted to me 2 days ago he has had sex with other females. I’ve Been nothing but so faithful & a damn good woman to him since day one... I broke things off between us & feel like I need to keep explaining to him how good of a woman I am. But every time I do he calls me a “whore” and accuses me of cheating when I’ve never cheated on him. He’s the only guy I’ve been having sex with for 4 years now. Please tell me how do you get over the fact that the man you love has been having sex with other females & please give me advice on how to get over him. I’m desperately trying to so bad it’s killing me...