Without knowing what went on before this it is very hard to judge the list.
On the other hand, the list is perfect to figure out what had happened before: their home was a mess, meals were spotty, there were frequent discussions that prevented him from work and she belittled him in front of their children.
That's not to say that the situation was her fault.
It isn't perfect. It's a list of complaints, and it could be entirely false. The home could have been spotless, but Einstein, besotted with dreams of how much better life would be with his cousin (and future second wife), complained anyway.
I had a relationship once where (and this is my perhaps incorrect, post hoc attempt at understanding what happened) my girlfriend didn't want to be the one who broke up, so she made more and more demands on me until finally I had enough. The demands in the list could be indicative of that sort of behavior, and not a true description of the situation.
On the other hand, the list is perfect to figure out what had happened before: their home was a mess, meals were spotty, there were frequent discussions that prevented him from work and she belittled him in front of their children.
That's not to say that the situation was her fault.