Help me

So I love my husband but I’m just not attracted to him anymore. He’s become someone that I don’t even recognize. He used to be so hardworking and cared about taking care of himself. Now he weighs almost 500lbs and is so lazy. I ask him to take out the garbage when it’s his turn and he acts like it’s climbing a mountain. His weight is not only a health concern but he’s breaking our furniture. Our bed frame has broken multiple times and we keep having to reinforce it. Our couch has a metal frame and it just broke. He says he doesn’t know why it’s broken. I can’t have sex with him because when he’s on top of me I can’t breathe. When he was on paternity leave he said that he was going to look for a new job and start working out again. All he did was play video games. I’ve tried to talk to him and motivate him to work out. I’ve offered to work out with him and make healthy meals but he has no interest in exercise and only wants to eat fast food. I’m just at a loss at this point. I’m worried that my daughter is going to lose her father of a heart attack and she isn’t even a year old.