Help!

We’ve been together for a year and we moved into together but we’ve always kinda lived together just my stuff wasn’t always here so, here we are living together and I’ve noticed some things that I don’t like... like he poops every morning usually twice, and he doesn’t he like to take showers he loves to take baths because he says it’s better for the environment. Saying that he usually takes a bath every other day, and recently we haven’t had any sex and I’ve been telling him take a shower. Now I don’t know if my sex drive is MIA because of him not showering or taking a bath or because of the fact that he’s gain some weight since we’ve moved in together...