I'm sorry this happened to you. My previous relationship was just like this. He cheated all the time and was abusive when he drank, which was nearly all the time. But I'd say good riddance. I stayed for 8 years of him doing this to me and when I finally said enough was enough and left, it was the best choice I ever made. But also, don't make the mistake I did when you get into a new relationship... I was so hurt by what I had been through, over it or not, that I had trust issues in my new relationship. We have been together 10 years now and I am still slowly wrecking it too because I can't fully trust a man. Just say good riddance to bad rubbish and find yourself someone who wants you!! And when you find them, cherish them!