This is a very interesting concept of comparing them to teenagers.
But unlike teenagers their brains have developed the ability to predict outcomes (I saw some science about how the teenage brain is not wired to accurately predict consequences).
I do think a lot of them have a large case of arrested development in this regard. But not by design, by choice.
Thinking of them as teenagers lets them off the hook too much. They chose this. Whether or not they were choosing to destroy their M and family is irrelevant - that they risked even the slightest possibility of doing so is the big kicker. I'll never understand how easily and how....? unnecessarily he blew the whole thing up. And for what? Someone who he will walk down this path with again someday?
I remember the sad clown saying to me "I never stopped loving you. I thought you had stopped loving me".
It was a kick in the guts in the same way "I kept my ring on - it would have felt wrong to take it off" as. Yes, he seriously said that.
I don't think they love themselves at all. Only someone who hates themselves would do something like this. It is their need for instant gratification (selfishness - false external validation) is all that matters to them.
This shit doesn't happen by accident. No-one has a spell cast on them. They choose to do it. Whether or not they thought of the consequences has more to do with what they chose to focus on rather than their capacity to do predict the consequences.
He knew we were married. He knew I was still willing to try to fix our M. He chose to see it as a lost cause - most likely because he knew something I did not at that time, that he had done it lots of times. This is his MO. He had done this in all of his prior relationships too.
I think what happened was he thought he could balance both a wife/family and fulfilling his selfish need for validation. He had compartmented his life and his mind so much that this was absolutely possible for him. He had done it for years so why would he need to stop now?
Even before DD I had seen too much of what was under that mask so I was no longer a viable source of that false external validation. Like a parasite who seeks another host off he went. Didn't mean he didn't 'love' me - they were two completely separate things in his mind.
He told me he thought what I didn't know wouldn't hurt me. He didn't see that with every lie, every step on that slippery slope, every disrespectful thing he did to me, our M and our family the further and further away he got from me. He was detaching with every little secret. I lost him well before DD. I did stop loving him before DD. I was willing to wait for and work on bringing it back. He wasn't.
The self loathing that was always bubbling just below he surface burst out and imploded our M. The need for false external validation became greater and greater. It is at fever pitch as we speak. At 40 he has his 24 y/o whore, he has his career and his money. He has the children he used me for. He also has 50% of his life to do with as he pleases.
He should be happy as a pig in shit according to his views on life/love/happiness.
Yet he still goads me every chance he gets. He still seeks validation from me. What he has still isn't enough - he is willing to humiliate himself to try to get it from me. Negative attention is better than no attention.
Sure, they loved us. The only way they know how.
For proof of that just have a look at the remorseful way wards here - those who have learned to love themselves again. Many have also learned real love for their spouses too. For the first time.
This didn't arise out of infidelity. This arose out of working their shit out. Not loving their spouse 'more' - more of that toxic shit isn't going to fix anything - but loving themselves and their spouse in a healthy way.