These intense love hate relationships are hard, not impossible.

Once a child is in the picture it takes a lot more effort to make things work because of course they wanna make it work. No kid they'd be able to let go much easier.

It seems they both want a 'normal' family life but they can't seem to grasp that normal family life means home for dinner, teamwork, mediocrity etc. These two just wanna hold onto their old lifestyles which is impossible.

A functional parent can party, like, not when bubby is so young and not all the time. And only when bubby is with someone totally trusted. Ron didn't seem to have much respect for his mum when she has been on js, maybe things are better now, but, I doubt it.

As a parent with a spouse I have hated (admittedly without the cheating, narcotics or violence [which just makes it seem like we had zero problems actually hahaha] of Ron and, well, whatever partner he has) I can say that two strong headed adults can make it work when they want it. But it takes a lot of acceptance and effort. Not just for a while but always.

This is not for everyone, and genuine clinical mental illness can seriously hinder progress but it seems like these two just self medicate and drink heavy. All rehabilitatable. But yeah, they need to really want it.