So Scotty B your STBXW says your right Scotty marriage is more then h and w. But I don’t think I can ever love you like a w loves a h but since I made a vow I will stay with you. I do not want to have sex with you and I will be miserable all the time.
Does that sound appealing to you?
Or
You build an amazing life that attracts like minded amazing people and maybe your w realizes her fantasy life isn’t that great and begs you to come back.