Yes, I’m in a similar position, it took me many years to see that’s what was going on.
I am having therapy, I went no contact but I have complex ptsd and still have all the feelings that it was my fault, and could I have done more to stop him cheating again.
The emotional abuse, lying, cheating, gaslighting, silent treatment, it’s all messed my head up,
I know what he is but still have these mixed feelings which I’ve confused with love for so long.
He popped up on Christmas Day by sending my child money, after no contact since he left me for the other woman. Typical they have to remind you they are still there. And it’s opened up a lot of the feelings again.
Time is a healer, if you can do no contact it hurts like hell at first and you have to go through every emotion you can go through. But it gets easier. You have to grieve for the relationship you thought it would be, and for the person you thought they were.
Sadly there is no magic cure, it’s just time. And try and pour love into yourself.
You are not alone. So much support on here from people who understand x*x