Need help

Teag

I’ve never been one to say I can’t I’ve without a guy. I have never felt this way.. but recently I fell in love with someone and they became my everything.. anyway he cheated and it’s been months since we broke up and there isn’t a day I can’t think about him and I already have a new boyfreind but when I’m with him I can’t stop thinking about my ex. I just need advice on how to get over him. I feel it was my fault and like if I gave him another chance but I also know from past experience with him. He’s not one to change... so someone help please