Name changed. I don't really want my Real Life linked to my usual MN name.
I am in the same situation but in my case I am the OP's DH.
My wife wants to hold the marriage together because of the kids and because she says she still loves me. The sex ended years ago (her choice). We now have different bedrooms (her decision). She does nothing but complain and shout at me in front of the kids. If that is 'love' then she can keep it.
A few days ago we went shopping and she decided to spend £115 on two tubes of face cream from Boots. To me it wasn't a big deal because we are both high earners so a) its her money b) its only a small part of our income.
We then walked past a phone shop and I mentioned that my phone is about 2 years old and that for an extra £10 a month I can upgrade to a new one. She then started going on about I am always wasting money and how I don't need a new phone and how she is trying to save for the future and how I'm not single anymore and that I need to think about saving for the childrens's future. The woman just spent £115 on some miracle cure face cream and she thinks I'm wasting money????
Anyway, the above is an example of what we constantly argue about.
We have been together for over 10 years and we have two young children at private school. Then there is the big-ish mortgage. If we were to get divorced we would have to sell the house and get two smaller properties each. We may even have to pull the kids out of private school. Basically, we can only support our current lifestyle as a couple living together.
In 2011 we had a couple of blazing rows where she told me to move out. I refused. By morning it was as if nothing had happened. Well the next time we had a blazing row I told her to be careful what she said. I told her thaall my valued possessions were in two Tuff crates in the garage and all she has to do is tell me to piss off and I will. Although the arguments are still on going she now refrains from telling me to leave the house.
I obviously don't know the OP or her DH so I won't comment on her post except to say it is not automatically the fault of the guy and that there doesn't have to be another woman involved.