Speaking for myself, I think the problem in my M is that I trusted my W too much. I honestly believed that my W had enough integrity in her character to never ever stray. That has proven to be my own folly, and I blame myself for that as much as her. W just took that as me taking her for granted, not as a compliment to her character and a sign of my love for her.
Will I ever trust her again, even if (hypothetically) she were to turn around and return back to her original honorable self as my wife? No, not entirely -- certainly never to the foolish degree that I did before.
I'd like to be able to trust her again to a reasonable degree. I'd like for her to honor her commitments again to me and our family. But I don't think I can or will ever blindly trust anyone like that ever again. I've been hurt too badly to ever allow that again.
No, the only one I will ever again put that degree of trust in is my Lord.