Hmmm...I'm not sure what I think about this.
I feel more sad that her marriages and, subsequently families, weren't more of a 'team' situation. That's how DH and I see our family. It's only now that DD4 is of an age to be left, that we've started going out regularly sans children. I don't see how putting your children first means you can't work together as a team and enjoy eachother as husband and wife; or that you can't have other interests yourself.
I think, for us, it's about how much those things impact on the children and if it's too much, then it just has to wait until they're older.
E.G. DH has given up doing triathlon for a few years, because his long hours at work means he gets stressed out trying to fit in training time. He doesn't want to miss out on the children's early years, so is happy to wait until they're older. That doesn't mean he has stopped runnign or cycling, jsut that he's stopped competing so he doesn't have to stress about training so much.
E.G. DH and I never went out without the children until they were ready and happy to be left with my parents, but as soon as they were, we were out the door and now go out regularly.
Both (amongst many other things) joint decisions - we're a team. I'd be horrified if my husband were feelign resentful about a way I was behaving and I'd expect to be able to have an adult, open-minded discussion about it - not him moaning, and me becoming even more stubborn.
I think her marriages broke down because she put her children into a place where they were the only thing in her life, which is different from the most important thing in her life.