There is something to this, but it depends a lot on attitude. It will be true for someone who's entitled or an ingrate, and everyone should run fast and long away from such a person. There are a lot of them.
On the other hand, people who have suffered at length can be quite grateful to find a decent person. Someone like that can make a great wife (or husband).
Relationships are hard enough as it is, imagine stacking the deck further against you by going for someone that's psychologically unstable. Definitely neither smart nor wise, at least for the rational type given the massive time & effort investments required.
On the other hand, people who have suffered at length can be quite grateful to find a decent person. Someone like that can make a great wife (or husband).