Someone told me on here that letting go of past resentments is a gift you give yourself. While I can relate to the anger and frustration, when I made the decision to let that go and focus on getting myself healthy, life became much easier. I still have moments of anger, but I am now able to shrug them off and move on. That doesn't mean it will always be like that, but day by day not being a ball of anger over what my ex "did" to me is a much better way to live.