You cannot be held responsible for his actions or the consequences HE has to face for those actions.
Ask yourself how happy you would feel in the long term if you knew he was with you and wanting to be with other women.
You have to put your own life back together if he is making you feel this awful. He is a grown man, you know from bitter experience how it feels to be treated badly so take on board the fact that you can be much more dignified than him. Give him the opportunity to stay and get his shit together or wave bye bye to him. You dont deserve to be treated like he treats you but you can be strong and to the point without being arsey which is how he is behaving towards you.
Best of luck and warm wishes for a better looking future.x

Thank you

A certain person can't make anyone happy. Happiness is totally an inside job. Even if he does leave for good everywhere he goes he takes himself to that place. A fling with MS. Perfect probably may not last long because he's trying to run from himself. Maybe if you are able to get busy caring and taking care of yourself perhaps your self worth and value may go through the roof.