I haven't posted on this thread before but have been reflecting a lot on it. I was desperately in love with my ex-H, who wanted large family life but barely lifted a finger in the house because he was too stressed or depressed, and I wanted to rescue him from his unhappy youth too.
I grew up walking on eggshells and "contorting myself into a pretzel" as PP said, trying to keep very difficult parents happy in a chaotic home, desperately trying to make it peaceful, then graduated from this rescuer academy into the adult role of bending over backwards attempting the impossible task of rescuing their father from himself.
Lots of fault on my part as, in our family, I brought the chaos, having grown up immersed in it. My drive was to fix my childhood by rescuing and nurturing and making other people feel better.
Anyway @PithyBeaker , I realised that he wasn't good for me. It didn't matter how much I loved him - he wasn't good for me, and that was all the reason I needed.
For years I couldn't even imagine having another relationship. But now I have been seeing a lovely man for several years who shows my kids how to treat your partner with real care and respect. He proactively makes changes without me asking; it seems like some magic power, but I think it's because he is actually a grownup and he doesn't need or want me to rescue him.
We do not live together, partly because I can see that MY family would be too chaotic for HIS peace. We spend most nights together, but having our own separate homes feels so important when you have your own children who are not shared. I know that if we lived together, my life would be easier, but his would be harder. That's not right.
My children are mostly adults now, and I used to worry about the impact on their relationships of what they'd seen growing up - me dancing attendance on their dad's mood. But at least when we split up, they were not seeing that, but instead seeing that no relationship was preferable to a bad one. They saw me freed from a relationship that wasn't good for me.
It has been a wonderful thing to see three adult sons having healthy relationships and treating their partners well.
Sending hugs @PithyBeaker ,and thanks to the many wise women who have posted on this thread.