Again, just nodding along. My former H also kept on saying "what about ME?" a lot -- it just made my jaw drop. I once asked him if what he wanted was more important than what anyone else wanted, and he said yes.
One of the things he also said regarding the children was "when do I get them" -- this wasn't about any custody dispute, he made it clear that he wanted me to raise them, it was more about when he could show them off or something. My standard response was "it's not about you getting them, it's about them getting YOU". He absolutely did not understand at all, and from what I can tell, still doesn't.
He did say one other thing in the first years -- "you have to let me go". I was confused, because it wasn't up to me, and I told him so, but looking back he was looking for some kind of permission from me, which of course I refused to give. Once I remember saying "But you're gone!" He wanted me to sort everything out, to give him the "get out of jail free" card.
I also know that he felt/(feels?) a lot of guilt, but doesn't do anything more about it. Years ago he used to tell me that he felt guilty, I asked for what, he said "for everything". But it stopped there, I didn't absolve him, and he didn't do anything more about it. Once I was no longer in touch with him at all he has a few times said this to at least 2 of our children; my daughter said that she had told him "so fix it", and he had asked "how?". Again, nothing further. More recently the one son that still sees him occasionally also reported that former H said that he felt guilty, but again, just couldn't take responsibility and try to change things. He still tries to "guilt" our children into seeing him, but always, always his own life/schedule/whatever comes first. That same son recently told him that he had never put them (my children) first, there was no response.
Way back when, near the beginning, my daughter, then 10 years old, tried to ask him why he wasn't at home with us, his response was that "I have a new life now". That hit her like a gut punch. He had also said things like "they have the opportunity to participate in another life", meaning again that it was all about him, they could be there if they wanted to.
There have been a few points along the way where I started to feel like he was trying to participate in their lives, rather than the other way round, but unfortunately that never lasted. At the time I of course took it for all it was worth, and even allowed myself some hope, but that wasn't to be.
They do know what they are doing and most ruminate on it all at some point, but they are so confused and damaged that they cant sort it out.
So in my experience that is the case. In my case my former H just keeps jumping from OW to OW, they can't even be called that any more. He also jumps from job to job, we have no idea what he does any more, but when he left he had a successful career, that also is long gone.
So, after all that rambling, I think you are handling it beautifully, even if it doesn't feel that way. One of the worst things is what it does to our children, learning to tell them the truth age-appropriately was a learning curve for me. At the beginning I did say that I'm sure Dad loves you, after a while I had to start saying that how he was behaving just wasn't right. That I had no idea what was going on with him, but that we were the family, that we were together and stable. Later I had to say that he had stopped paying anything, and this is what it meant for us, and so on and so on.... not pretty.
It probably says something about me that I'm still reading here, and that I find myself drawn to respond like this at times. It's from a very different vantage point, however -- my now adult children and I are a very strong unit.
Keep going -- I used to curl up in a ball, I called it "going into my bubble", to calm the noise in my head, it helped me see clearly in all the confusion, and that helped me to keep putting one foot in front of the other and stand my ground, which was invaluable.
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