I am in a similar situation with my son. No matter how truly evil and crazy his mother is she can do no wrong. In the last 2 days of my daughter's life and death was immanent my ex decided I was spending too much time her. I talked to my son and he said he supported her decision.
I live my life today and for the last 6 years by high moral standards. If he chooses to see me for who I am that is great. If not it is his loss.
I answer to God and myself and I am OK with me and I hope God feels the same way