My partner cheated a week ago with an escort. We've been together for 6 years and have 3 kids together. He said it's the biggest mistake of his life and he was steaming drunk when he did it. He had no intention to it and it wasn't planned. He took a whole week to tell me. When he told me I told him to get out and take his things with him. He didn't want to leave because the kids would have realised and asked after him. He has promised things will change and he has made 110% more effort than normal but I have a feeling it won't last. His friends are also cheats as well and he's constantly getting drunk with them on the weekends but he's promised that will change too. I don't know what to believe or what to think. What would you do please? I need to look at my situation from another persons point of view.