Hi Anjo , this is my humble opinion. XH is still very lost and unsure of what he wants from life. He sounds depressed and unable to make choices for himself.
Pink , I would remind you of the old , 50% of what they do rule , XH sees you getting on with your life and put on the spot he answered , No. Accept that as the reality for now but I wouldn't close all doors because of that conversation
Vanillia is right , his behaviour re OW is all him , you may not have been the best W on the planet but you certainly didn't force him to make the choices he did
Sorry to hear about your health and hope your back to full fitness now