I'm sorry if it sounds like I'm harping on - I did read what you said that there's really no chance of reviving the marriage. I guess I'm just trying to understand because I can't work out how this fits with the comment I'm quoting.
I've got lots of broken-up marriages in my extended family - basically my parents, grandparents, all my aunts and uncles, nearly all of them have been divorced at least once each. I've seen my fair share of the dozens of ways a marriage can go wrong: infidelity, alcohol abuse, domestic violence, emotional bullying, neglect of children etc I've seen lots of examples. In nearly every example I've seen there's been one party (ok, usually the man) who has been the dickhead to start with, although after years of discord the other person also becomes vengeful/violent and everyone sucks. I've seen knives brandished, suicide threatened, police called.
I've never seen two people who are fundamentally ok people, communicate well, co-parent well, live together peacefully...and still not stay married.
I totally appreciate that we don't have a full picture because you've only posted a few posts and you don't have to tell us more, of course. But I hope you see what I'm getting at.
Maybe you'd respond (fairly!) that my bar is too low. It isn't in fundamentals. My husband was by my side for 36h through my labour with dd and never took a break. He'd take a bullet for me and I would for him. He's about a good a guy as I can find. But yeah, we have had issues like infidelity (that was me, many years ago) and dry spells of no sex, and silent spells due to depression (that was him, on another occasion). But the way I feel about marriage is like, if he's a fundamentally ok guy, it's always worth trying to give it another go.
Thanks for listening to my Ted talk lol