I can’t get mad at women standing up for women.
Men’s behaviour within a marriage tends to be more self serving and selfish than the woman’s, and “the script” is a thing because it’s so common. When you see posts on the relationship board you start to recognise patterns, predictable ways men behave. If you go to male centric forums you see the same thing on steroids. Women’s behaviour tends to be different. They leave for different reasons.
The women I’ve known who’ve come out in later life have not duped anyone, they haven’t known themselves that they were lesbians. They’ve usually left a sub-par relationship and find someone they connect with, and if that’s a woman others shift their perception of the whole marriage in favour of the poor man who’s been lied to for years, which simply isn’t true. Had the relationship been good, supportive even, then plenty of women would put up with it until death do you part.
You start to question when you realise what a crap deal you have. When you’re the mental load carrier, the one who is responsible for the emotions of everyone in the household, the default parent, cook, cleaner, bottle washer.
When there are long periods of not wanting to have sex at all - that’s normal for all women at certain points, it’s not something that makes you stop and wonder if you’re actually a lesbian. Schoolgirl crush on a woman? Again normal and experienced by many straight women.
Women are conditioned from a very young age to make way for men, to put themselves last, to be people pleasers. It’s a completely different pattern when women leave men after a relatively long marriage.
Obviously this doesn’t apply to all men and all women, but there’s definitely a pattern there.
It’s quite refreshing that most of the posts here see the mother as her own human with a right to be happy. I posted about 10 years ago about possibly being a lesbian, having been through some really tough times and ending my relationship with Ex. The responses (bar a couple) were all along the lines that I’d lied to my poor husband, that I’d deliberately seduced him to have children, that our whole marriage was a sham. Nothing was further from the truth. Ex’s behaviour was the reason for ending the marriage way before I questioned my sexuality. No one lied. We had several very happy years. But the possibility of me being a lesbian shadowed all of the past. I still haven’t come out because of the misogynistic homophobic stuff I read.
Yes it’s difficult for the OP, but hopefully this will help to see it from a different perspective. As a parent your relationship changes with your child once they become an adult, it has to. Hopefully in time it’ll be easier.