..she could have done worse.. that's for sure, she already did, twice! So did I.
It's not so much a matter of good people marrying bad people, it's more a simple matter of incompatible energies.

Kinda like trying to find the right size wrench to fit a certain nut.
There are adjustable wrenches but they never fit like the right one.
If you put a large bolt into a small nut, it aint gonna fit.