I think people often project their own guilt they are afraid to confront themselves with on other people as a survival instinct. It's a cruel vicious cycle and I'm sorry you had to go through that. We all strive to keep the ones we love happy and when they do things like that it makes us feel like we were the ones who did something wrong, and that itself is wrong. Also I don't know if there is an actual term for the kind of person that would do those things, but I like to think we are all on a spectrum of all things and some of us have a little this or that. You are so right about nobody being perfect. I hope you recover quickly and find someone more forgiving and honest.