The responses on this thread are fairly uniform and come from a place of sincerity. Concern for the children comes across. The point about pacing the new relationship to suit the children is very practical advice. I agree with the spirit of the comments.
What I say though, is why then are posters on Mumsnet always urging wives to ltb , after first getting ducks in a row? I'm not talking about situations when there has been domestic violence; gambling addiction; infidelity but more problems around the practical assigning of chores and tactfulness which I would have thought would fall under the heading: 'Things which can be worked on' . Why is the advice to be found on MN "You're better off without them"?
.Also, MN seems to demonstrate that a lot of poor wives and partners are deserted for a new woman. People are often posting in distress and pain about infidelity. How can you work hard on a marriage when your partner is likely to give you STDs and is destroying your morale?
I think, but don't know, that some new partnerships end up as living together because it makes for a unit which can sustain the job-sharing and financial load of living. (I might be wrong. ) If a couple really do split and don't interact and chat, it can mean one parent struggling on not much money, struggling to find care for the kids when they are ill. Some parents have had two kids in the expectation that the marriage will last and what was planned for the kids will happen for them. If the ex, let's say ex husband , gets together with another who says "Your ex is expecting too much. We can't afford to.pay more" , then how can they keep things going? Nice if you're a well-paid lawyer with money for nannies. ( And I'm glad many mother's do have successful careers: good on them and thanks for their informed legal advice often given for free on this forum. But otherwise, not keeping two houses going, but sharing a house with a new partner must sound like a secure option.
. IMO , historically, utility bills, rent and mortgages have risen over the years to accommodate the reality of women and men both working full time. We won't return to the 50s, 60s and 70s when people like my parents lived on one full-time wage, had a gardener occasionally and home-help, when we kids were little. And my dad was a schoolteacher - not a big earner.
I think cementing the new partnership with a baby fairly speedily is something you can decide not to do and something which I think diverts existing resources from the older kids, and which maybe complicates things. Not a must to do this, I think. Kids are individuals and should be put first at all times.