I'm not attracted to my fiance.

Throw away for obvious reason. I (27f) and starting to no longer become attracted to my (25m) fiance. To start this off, I have no hatred towards plus size people, and I have been a bit on the heavier side myself. However my fiance is quite large. He has broken my mother's couch and when we are driving in her small car, she can barely control it. He also cannot put on a seatbelt. When we have intimacy, he hurts my hips and spine with the weight he put on me and I can't go on top bc there is too much stomach. I have tried to help him with his weight and even offered to start the journey with him, but he would rather complain about it and then eat an entire pizza for dinner. And he has become miserable to be around. He is either sleeping, in a mood, or playing videogames and trying to get handsey when he's not at work. He also does not let me just be myself. I have rbf, and he knows this as we have been together for 5 yrs yet he always pushes me to find out "what's wrong" even when I promise it's nothing and I'm just on my phone. He has never become physically aggressive but he does like to start arguments often. And if he's not mad and arguing he wants to have intimacy. He gets mad over the smallest things, like if I ask for help around the house, or for him to grab something, acting like it's a huge chore, however when I say nvm I'll just do it myself, he gets defensive and asks why I'm always pushing him away. There's more but I just don't really have people I can talk to as my mother already doesn't like him so I just needed to get this out.

Edit: I should also add he is currently the only income due to some health issues I just recently resolved, and while I am searching for a job, the bills do just keep coming

Edit 2: I see a lot of people on here saying I'm only staying for his money and I wanted to say that's not true. I simply put that bc I see a lot of people on this sub telling others solutions that a bit of money and figured people would need to know that before giving money oriented suggestions. I am with him still for a multitude of reasons, such as, he is funny he always makes me laugh, he is gentle to every creature big or small, and we have plenty of moments of joy and love, the best times I've had are with him. This only highlights the negatives because I needed to get them off my chest. There are plenty of good as well