Fred, I know your pain. Went through that myself many years ago. We could not work it and ended up divorced. I did not handle it well, went off the deep end sort of. Never thought of doing away with my self, I like me too much. But did have bad thoughts about her family. Just thoughts I never would have done anything. I had put my all into that union, and I was devastated. I felt I loved her so much, I just could not stand to be without her. Ended up on the Psych Ward, took some doing, but I got over it.
Met a wonderful woman after that and started all over. Again built a beautiful life with a woman. Admit it took years before I truly trusted her and she me, but it's now been 35 years, and I would not go back and change anything.
As many people told me, "Life Goes On".