>one just gives up on the other person when times get hard. That's a pretty simple summary. You don't go from prosperous to poor without a lot of stress and f

>one just gives up on the other person when times get hard. That's a pretty simple summary. You don't go from prosperous to poor without a lot of stress and frustration, and that can change people, usually for the worse. If your partner used to be very loving, and spend time with you, and now is working all the time, and angry at the world in general, and lashes out at you for not doing something trivial, and you fight all the time... at some point you just move on.