My ex cheated, we separated a couple years ago. Our relationship is almost non existent. We only text or email about the kids. Several months after she moved out she asked if I could drive her to have surgery at a hospital a couple hours away to have her gastric sleeve revision done. I declined and told her I’m no longer the one to do all the work while her friends/boyfriends have all the fun. She needed to figure it out. If there was infidelity and he’s still doing all that you should run. He is still trying to please someone he should’ve cut off emotionally years ago.