While I don't think it's a "Brit thing" my exwife was a Brit. Looking back it seemed like she worked towards sabotaging our relationship. I sometimes wondered if she was actually trying to push me to be unfaithful.
On top of everything else she seemed to want to be miserable. After living in the U.S. for a short time she announced that she hated Americans. Later; when we were living in Germany she decided she hated Germans. I had enough of her behavior and filed for a legal separation (pending divorce). I arranged for her and her property back to the U.K. A few weeks later I heard from her. She remarked that England no longer seemed like home and "she hated Brits."
Last I heard she moved back to the U.S.
I grew tired of the dating/hooking up scene very quickly. One of the reasons I had to end the marriage was the emptiness and I didn't want to trade one form of emptiness for another. I got involved with things that interested me that took me out of the house (that didn't involve heavy drinking and more "hook-ups"). I eventually met my current (and last) wife. Neither of us were "looking for someone." We just were fortunate.
There is a case in the Florida appelate courts where denial of sex was deemed to be psychological abuse. The case was over a woman who essentially used the denial of sexual relations to goad the husband into having an affair and then try and claim a enhanced equitable distribution.
The court found that her psychological abuse would not be allowed to create an inequality in the marital relationship for purposes of property division.
NOTE: The issue was the wife (soon to be ex) attempting abuse in order to “self help” better finances to her.
This “treat yourself right deserve it” and “have it your way” and all that culture, has just ruined people. I’m not saying that people shouldn’t take care of themselves, it’s the attitude many have about it, the entitlement. Treating yourself right is supposed to make you a happier and more caring person, not a selfish navel-gazing toxic person who won’t grow up.