I agree with this also.
I’ve been a single mum for 5 years now. When I was married I (along with my then husband) was invited to special occasions like New Year’s Eve and birthday parties. Not anymore - I’m an afterthought, only slotted in around other events rather than being invited to those events. Or if I’m on a childfree weekend and they need childcare help.
The most recent thing was when my friend and I had arranged to go see some fireworks together, all of us (me, her, her husband and 4 kids), only for them to see another family there (a couple and their kids) and spend the whole time with them.
And they tell me that they “feel so sorry for my kids” and tell me how they say to their own children “at least your daddy still lives with us unlike cadburyegg’s kids”. I get asked why I can’t commit to an evening gym class 3 times a week.
I’m sure those friends don’t even realise they’re doing it and probably think they treat me the same as their coupled up friends.
I no longer talk to my married friends about being single or dating because their idea of being supportive and helpful is saying things like “oooh you should concentrate on the kids”, or “if Brian and I broke up I think I’d just focus on being single for awhile” etc etc.
Some of them also don’t understand the pressure from being the sole breadwinner because they all work very part time and their husbands earn most of the money. So they say things like “don’t work too late” and don’t have much of a work ethic themselves, they don’t understand why my work has to be a priority because if I don’t work my kids don’t get fed!
So as a result there’s an increasing amount of things going on in my life that I just don’t tell my married friends about. It’s very isolating.