Someone please tell me what to do here

My husband rarely if ever initiates sex anymore. In my head I link it to me putting on weight even though he says it’s not. I’m constantly having to initiate whether it’s kissing or just flat out having to ask for sex. I feel so unwanted. I keep bringing it up to him and he says he understands and will change that but he never does. I’ve hit a point where I’m wondering if something is wrong with me. Is there anything I can do here? I feel awful

Edit:

Shortly after making this post he asked me if something was wrong and I just didn’t beat around the bush and told him I felt unloved and unwanted. He finally gave me a reason. He admitted that he has become complacent because I’m always around and will initiate if I want it so he didn’t see a point in trying. It took him about half a second to realize how wrong that was and he started crying. So we sat and talked about why that was happening and what needs to change and what’s going to happen if things don’t change. Based on how many times I’ve had to bring it up I’m struggling to believe that he will change but I’m still going to give him a chance