It's happened more often because in my eyes anyway, we appear to have become two completely different people with not many interests (and lack of money doesn't help) over the time we have been together.
This is a prime example of why I think I have these thoughts..
She works shifts with the NHS and I work in a estate agency, run by my father. I fully understand that she has a harder time at work then me yet she clearly believes I sit on my arse all day doing nothing. This then provokes the "I've been at work and yet I'm doing the cleaning" attitude in the evening when we have both been at work. Yet she forgets that i'm the one who had to get the kids ready in the morning, take them to school, pick them up, feed them, entertain them, etc. However because there are some toys on the floor and the kitchen work surface has crumbs on it, the house is a crap tip and I must not care about it.
However me being me, I don't see this as a competition, whether she's been at home all day off work, whether she's done the kids run in the morning or afternoon, I don't expect her to have done anything because well why should I? If I came home and the house was a mess (and our definitions of a mess vary greatly) then i'd simply do bits and pieces here and there. What I don't do is feel the need to storm around the house cleaning in order to make a point and proceed to be an arse for the next few days because well, I had to tidy things up as no body has done anything.
I just think, I can't be bothered with this hassle