Are you lazy? Is your girlfriend lazy? Do you feel like you don’t pull your weight with chores and other stuff that you see your girlfriend doing all the time? How many times do you do dishes or take out trash? Do you and your girl take turns cooking? What about the pets or the kids, who takes primary care? Do you both work?
Not sharing chores can cause stress in relationships, especially if it put on one person the majority of the time. It can cause personal stress, or it can just cause arguments, and who wants to deal with that?
There are a couple of things that can happen, get off your lazy butt and do something. When you see your girlfriend doing dishes you start to rinse. Sharing chores is better than doing nothing at all. At least if you make an effort (or vice versa) then you know you can breathe easy. Next, split the chores (easy enough). If it is hard to just do that, then make a list, do popsicle sticks if necessary, charts, whatever it takes. Or you can hire someone so neither of you have to do anything.
If your girlfriend or you do not work, then one of you need to be the house-bitch. It sucks but that is just the way it is. If you both work then just split the responsibilities. Also, make sure you express your gratitude for things that are done regularly.