First of all, I don't think she made a mistakes by choosing the

not so perfect hu*****and. I would say it is not a wise choice, but definitely not a mistake.
Unfortunately, life is not a piece of paper which can be erase by just wiping everything off. For me, life is more like a choice, Once you pick yours, then leave with it forever. You can do something to improve it or change it, but you can't erase it.
Responsibility , responsibility, resonsiblility!