Just makes you feel like a bit of an idiot for wasting so much time and effort on a person at the time. Felt a fool for not seeing any signs & for trying to "fix" things and putting effort into finding out what was wrong and blaming myself for everything. Just ****ed me off in the end that people I trusted would have done something like that after everything I had done for them over the years. You live and learn however & had many lessons from relationships since then and been a stronger person afterwards too.
I hope I'll learn too. And if my ex did something like that I don't really know if I would want to find out. How long was it before it felt like you "moved on"?