My parents are from China, arranged marriage, there was like a time where they used to argue a lot about stuff... financially related stuff... I overheard my mom threatening divorce, I mean, she was the aggressor to be clear, my mom made the most money in the household and she was just mad at my dad for, and I quote, "such a useless man", I mean this is mom that called me and my brother useless kids too...
I remember feeling so scared about the threat of divorce, like I'd probably have to follow my mom purely for the better financial stability, but then I feel like my mom would've gotten even more abusive since without the stable household, and I felt an overwhelming sense of dread... I was a teen during that time...
But luckily the divorce never happened... I'm assuming they stayed together for us, their kids.
Honestly if me and my brother died, I bet their marriage is like instantly over.
Children are like the main purpose of marriages in conservative households.
I think most marriages in China falls apart because of alcoholism or gambling or cheating.