Girlfriend doesn’t take showers and leaves house very dirty

My girlfriend sometimes just asks like a slob and it grosses me out. She is just fine with having clutter around the house and having dishes rack and pile up to the point we start getting flies, she helps around the house and does a good job but it is only when I do it and then u have to remind her to do those things, she doesn’t take any initiative in doing them herself. If I don’t do dishes she will let them pile up and the house starts to stink. She also sometimes will not showers for days on end and every time I bring it up she gets angry. She doesn’t seem to take care of herself sometimes and let herself go a lot since we have started dating again (almost 6 years) she has gained about a hundred pounds. I love her to death but all these things together are a super turn off for me as it seems she doesn’t take care of herself or her body and health. Am I the asshole?