37 years is a long time to know a person. If after 37 years you and your husband did not develop a strong enough bond of friendship that when faced with a crisis of conscience he is still able walk out on you and not look back then you’re really not losing anything, you’re gaining freedom. Think about it, we’re talking 37 years. You put in 37 years together and he’s able to throw it away without qualms. It means he was never in it. It means the two of you didn’t have a friendship. Just because you’re married to someone for 37 years it doesn’t automatically follow that your relationship is working and it clearly wasn’t working or your husband could not just walk out on you, not even for a 20-year-old and her hot body assuming a younger woman was involved. If you build up 37 years of love and caring for someone you don’t devastate and crush them them for the sake of vanity and ego. So consider that if in 37 years you and your husband weren’t able to build love and caring for each other you are both better off with him gone. Seize the opportunity you’ve been given. You deserve better than you had.