Anyway, I think I should try not to hyperfocus on the details and hypocrisies and try and absorb the larger lessons. Manipulation and control can be enacted by people who are not all powerful supervillains, who may indeed be quite weak, mentally ill and unstable - in fact, seeming weak or leaning into apparent victimisation can be one way of exerting control. An important thing is to look at my own agency in normalising harmful behaviour, and in allowing agreements to be forgotten or rewritten - this 'normalised' a state of play where the only accountability was to his emotions of the moment.
Yes, take what you learned when considering a future relationship, and even in other relationships. Someone's behavior can be hurtful, no matter what their motive is. We don't have to normalize it. We can choose the qualities in someone we consider getting closer to. Nobody is perfect but we can look for communication skills, the ability to be accountable, and how they respond to conflict. Most people can be on their best behavior when first meeting someone. It's when the relationship progresses that we learn more about them.
It's not only in romantic relationships. There are disordered people in the workplace, in friend groups, and families. We can pay attention to our own feelings. Are we anxious around them? Walking on eggshells? Frequently sad? Some forms of relationships are unavoidable- like someone we have to work with, or a relative, so we have to learn to have boundaries with them and still have a cordial relationship to the extent possible. However, for someone who is single as you are, you can be discerning about who to become romantically involved with- next time there's a possibility. Your ex is in the past, so what you have learned could be valuable to you.



.) Cc43, what you say about a victim narrative resonates here.