Yeah, there are benefits. Certain things are cleaner, I am eating and drinking less. There is room in the fridge. I don't have to listen to loud crunchy chewing all the time, and no one is talking through their food to me. I don't have to go through a bunch of possibilities before watching a movie or a show. The covers actually stay on the bed all night, so making the bed in a casual manner is just a flip of the comforter and blankets. I can make whatever food I want for dinner. No one is picking a fight or is asking if I am mad about something, even though if I was I would've said something each time.
There are drawbacks, too. I am lonely, plus I am bored off my ass. I miss the good things. It is strange being an isolate again, and I have to invent reasons to go out of the house and interact with people. I don't get dinner made for me half the time. I used to have sex, but to be fair, there was much more of that the first couple of years. Financially, she was paying half the rent, and more than half the food, so now I am even more screwed, too. Finances are no reason to stay with someone, though, that is for other people.
Anyway, it is just an adjustment everybody has to get used to, all relationships that end have similar symptoms. I am sure she has a similar number of the good and the bad of things, similar depth of feelings and such.
So it goes.