Here is the thing. Even when you love someone dearly, you need time away from them.
My father went from a 5 day workweek to a 4 day, with the free day being on a day my mother works. She was annoyed at it first, because " Don't you love me and want to spend time with me." After thinking about it she understands. She likes having time just to herself as well.
They love each other dearly, go on walks at the end of each workday, having weekends away with just to two of them.
Just having some time to charge up and not having to deal with anybodies shit.