We disagree on this. Providing and protecting is not adequate for a marriage. It’s one small piece of it..the barebones essentials.
Women (and men) need to feel needed, loved, and appreciated/respected, at least on some level. And there needs to be some harmony in the household. In my opinion, it is the responsibility of the man to lead the way in having this environment, while also providing and protecting.
Her husband is a turd and she’s living in a hostile environment.
I agree with your point about OP having part of the blame in relationship problems, that’s true of all marital issues. It’s never 100% one-sided (exceptions for infidelity and abuse).
But one can’t even begin to work on other issues if the environment is crap to begin with and hubby is doesn’t have the basics of being a good husband. He would just take advantage of her good nature if she bent over backwards even further.
OP does need to have her feelings validated. That’s exactly why every poster makes an OP. They need some more eyes on their situation and external thoughts about the way forward. This OP is no different.
And what do you think is going to happen to her if she keeps going down this path? She's overweight, with kids and no job. She's going down the wrong path, effectively setting the stage to morphing into a walkaway wife.
My opinion is that she has to become a better wife: lose the weight, get a job and become a pillar in the marriage. Don't dump everything on the husband and then withhold sex. That is a recipe for matrimonial disaster. We males know that when our wives tune out the sex, it drives us crazy and WE begin to act up. Which probably explains his behavior. Having a high level of testosterone makes you yell at stop signs... The wives can and do regulate these levels with a decent amount of sexual activity. Without sex, the wife become the stop sign.
Her marriage is
EASILY recoverable. There's no adultery... he doesn't have "special friends," doesn't do drugs or is an alcoholic. They both, BUT SPECIALLY HER, have to be better husbands/wives.
And then let's not forget about the kids. The kids have a better chance of not becoming socially crippled if both of the parents work things out. Not only that, if they both work it out, the kids will grow up knowing that 1) they will have fights with people they love and 2) they can negotiate common ground and 3) they can reach an agreement that makes the entire family better. A VERY valuable lesson.