Surely this is often just about different expectations and standards.
My exdh was a truly lazy sod around the house and this caused no end of problems for us as I too am pretty lazy when it comes to domestic chores (hence name ).
I hate living in complete squalor but refuse to do all the work required to prevent that unless I am living on my own. If someone else lives with me they need to pitch in too.
One solution was to hire a cleaner as we could afford it but Xdh wouldn't. He saw it as 'demeaning' to the cleaner so the arguments went on.
We eventually divorced and although the domestic chores argument wasn't the main cause, it did however highlight how my needs and wants were not listened to by dh and were poo pooed. I personally chose not to have children with him at first because I was worried about how much worse things would get once we had children.
dh was also incredibly messy when I met him but I would not describe him as a slob, he just does not see it as important to have a tidy, clean house. He lives in his head a lot and his home surroundings have almost no effect on him.
He is however sensitive to the fact that I do want the place to be reasonably clean and tidy. He is thus happy to pay for a cleaner and does meake quite an effort to clean and tidy up as well.
I still do loads more cleaning on a daily basis than dh but that is because my standards are higher. That is just the way he is and in fact he makes great efforts to accomodate my needs on this so the fact that he tries is enough for me even though that does mean he doesn't clean the kitchen surfaces after cooking or even consider washing the kitchen floor.
He does stack the dishwasher and tidy away but he just doesn't see that the surfaces need cleaning more than once a day. The thought that kitchen surfaces need wiping down after every time you have prepared a meal is just not on his radar.
Also he is happy to let paperwork pile up everwhere, but is also able to find stuff easily in the mess because he has a good memory for where he puts things. I on the other hand can't stand this because I have a bad memory so end up seraching everywhere for pieces of paper and admin. I have to be very organised and put everything in a set place otherwise I can't find it again.