Hombre's dad was not what one would choose for an ideal Father-in-law, drank to excess, and pretty egocentric, and his mom reacted to that by being the world's most negative person who found fault with ALL her inlaws. Both are gone for some time now and we try to remember the more pleasant times.
The rest of my inlaws are terrific, I love them all dearly, and am as close to them as I am to my own family. If Hombre should pass on before I do, I can't imagine I won't stay in touch with everybody. In the few rare cases of divorce, the divorced partner generally has stayed in touch with the rest of us, comes to weddings and funerals etc.
My inlaws are a far more functional family than my own.