Well, the idea is that you understand where you need to be as the priority in your life, which, if you two can get through this, is also where you need to be for your family. However the feelings of your partner is not in your control, so you could do everything right to be in the place you need to be while she simply chooses to not be with you.

The partner and family is a priority, but one cannot better themselves for the sake of their family. It doesn't work that way. You have to do it for yourself and let gravity do the rest. Otherwise you wind up with the 'i did it all for them" which tends to cause a massive nosedive if the hurt cannot be reconciled. Sort of a way of saying "hey, I made all these changes, I did the work, if you choose to leave me, it's now all your fault." Sort of absolves a person from blame when the original problem may still remain in your partners mind. As I said, learn to accept that she may not be able to reconcile the past no matter what you do.