I just read your last post now @Determined. That would of been a extremely painful time for you when your wife was under pressure to leave you. Ahh, yes, narcissistic influences (and more these days sociopathic ones) - my daughter is under them presently and this can tear a family and lives apart if the person is not strong enough to break free of the influence. These relations are toxic and can do much damage mentally to some if they are vulnerable personalities.
But the main thing is my friend she did not leave you. Her reluctance to speak to you about it is shame and guilt no doubt. Saying sorry is an admission of guilt and remorse and can be why so many have trouble saying it. As they can't face they were wrong and are not remorseful. Some always seek to justify. That can destroy a relationship.
It is a big step in a relationship to say sorry. A good thing. Opening a pandora box of the past once someone has said sorry, can sometimes cause more hurt and damage trust. But it is good that you expressed that pain here. Very important to express. The main thing now is to strengthen trust between the two of you which may have been damaged as well, by nurturing the bond you have now as that is what matters - not the past. And this will see you through the tough times so you both can move forward to better times. For that to happen we need to let go of the hurts of the past and look to the now. It took me awhile to do this but time heals much.
My husband and self are very close, soulmates. But the best of relationships can have bumps as we are all human. We endured many and hurt each other at times. The main thing is that we are remorseful of hurting the other, sorry, and we worked on the weaknesses in our relationship.
The stress of our daughter has proven our bond as that would of broken up most people. As would the strain you and your wife are under, but it has not. That's what matters. That can be the test of love and if it is real will endure and grow in time. Hang on. My husband and I are closer now than we were 10 yrs ago and that love grows. But saying that, it is also important to always express our own needs to those we love as the latter is a two way street.
Trusting anyone after enduring childhood abuse and much hurt in the past for me has been very difficult. Although always a struggle, I act on will to trust those only I know to be genuine and have good intentions. It has to be nurtured, and if damaged repaired with loyalty.
I wasn't a fragile person - that is probably why I am still alive today. Plus the support of my husband and faith. From what you are telling me your wife would benefit from counselling and learning coping strategies to cope in life. And to gain awareness of what she has - the positives and good in her life. To also work on her own self esteem - the main trigger for depression when it is low. She may also have physical ailments and genetic makeup that make her vulnerable to feeling low. All can be strengthened with a positive outlook and healthy lifestyle. It's hopeful.
I am so glad you are talking these feelings over my friend. I hope I have related well enough to support you and do the best I can there from my own life experiences. But the main thing is that we get it off our chests and out there rather than suppressing.