I have to say... I really like all these stories of women (and men) who got divorced and then married a great man and were happy ever after.
How many women are getting divorced and never remarry or never have a LT relationship again? How many end up in a crap relationship?
All this stuff about children will be happier is true of said woman is ending up happier, happier relationship, less financial struggle etc...
If I was to divorce, I would be on (disability) benefits. Some days, I would struggle to look after them (as in cooking, cleaning the house). And the dcs would have had probably a dad that wouldn't be that hands on/present.
Would the stress of finances, not support, probably no LT relationship, dad not keen on seeing them .... really be less for the dcs than living in a relationship that isn't quite perfect? (I'm thinking stonewalling, grumpy, etc etc from DH).
That was the situation for me 10 years ago. And tbh, even though on paper I should have left because DH was really an arse at the time, I am also pretty sure that the dcs would have suffered a lot from it.
I just don't think it would have been the right decision for them (and, as the future did prove, not for me or for DH either).
Just going onto the 'Lone parent' thread and you will see how hard the life of a divorced parent can be. Yes on this thread, a lot of the people are descriving crap relationship before hand. And SOME of them are saying they have been better for it. SOME people have also decsribed how affected they have been by it, sometimes even as an adult. And OTHERS have also said that they have seen exactely what the OP describes, ie a relationship that could have been mended but where people decided to give up 'because I deserve to be happy and if I am happy, then the dcs will be happy too'.
All of those exist. And that means that for SOME children, they wouold be much better off if their parents were putting a bit more effort (understanding/support) into mending their relationship.