Well, I misinterpreted your registration date and didn't realize you've already remarried....
I guess I understand the statement that you hold friends to a higher standard. In my life, I have found that family members as well as XH's are human and deserve some kindness on my part.
I'm happy to say that I have passed that kindness on to my kids and it has helped them to actually get a relationship with their dad. He messed up, yes, he hurt me greatly, but it helps none of us to sit in judgement and hate.
I agree that if posed with him wanting to come back, all bets are off, but I know for me, forgiveness was more for me and the kids then for him.
This is only my opinion, sounds like you have what you want in life.