After the 1st one you can hang it up...In rare cases they last. some do because they never let go in the first place ala rust prost. He never really loved his wife and kept his 2nd wife on his brain until he could get her...
you know it may be something to that. I've seen chicks marry other dudes, but it seems like it's always that dude from their past
they continue to bang even decades later, they couldn't fit the husband bill but they purposely never lose contact with them