Lots of mind-reading ^^^ but we all do it looking for meaning. Sometimes there is no meaning.
Some people do store up hurts and the longer you've been together, the more hurt they have. Therefore the more time it will take for them to let go of that, if they ever do. They don't want to be hurt again. This is true in my sitch.
Keep doing what you're doing, have no expectation about the outcome. Chances are you'll still have some expectations but realize that and don't let them dictate what you do.
You're doing great, just realize that there's probably a lot of stuff buried in your wife's hurt locker that may never be revealed to you. All you can do is work on those things you know may have contributed to that. That will make you a better you, no matter the outcome of this.
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss