I'll bet if you really look back...if you really think about it, you'll see things you turned a blind eye to. I was reading a post from someone yesterday (don't recall who, sorry), and it laid out a series of events that he/she chose to ignore. As I read it, events started playing out in my own mind. Times I probably should have taken a harder look at the way my life was going, but I chose to ignore those events.
Your wife cut the crotch out of someone else's pants. Does that sound like a stable person? You knew she did evil things, but you chose to ignore it.
Sadly, we all did. That's why we're here.
There will be many "aha" moments. Some things you ignored, some you just didn't see - love makes you blind. It did me.