Confessions: My husband is obese, I feel embarrassed when people stare

In the last two years, my husband has put on a lot of weight and grown totally out of shape. He now has a big and ugly pot belly that hangs loose, his breasts have blown out and he has too much body fat on every part of his body. The situation is so bad that he cannot put is socks on or tie his shoes without help. This is disturbing because everything has changed including our sex life which is now dead. I don’t even enjoy going out with him because people just keep staring at him wondering what is wrong with him. I feel bad for him and would really like to help. Before, he was fit and had an awesome well-built body. I want to help but don’t know how. Please advise me.