My husband upset about my weight

My husband came into the bedroom yesterday and said that he’s tired of looking at me being so big. He said that I was going to get to be one of those people that has to be pushed around in a wheelchair and he wasn’t sticking around for that, he said that’s not what he signed up for. I’m about 50 pounds overweight mostly because I had major back surgery and two knee replacement surgeries in the last year so I haven’t been able to move around too much, but I’m on the mend. my weight has fluctuated, but I have not ever been this heavy and I do plan on losing it. My husband wonders why I never want to have sex with him. I feel hurt and resentful.. Husband thinks I’m fat.