What do you do if your husband says he is not in love anymore?

Ask him why? And what is missing from the relationship? Ask first maybe what where the qulities and things that made him fall in love with you. And than maybe by his answers you will understand or see that he is a different person now or has changed. A person can't make people love them. I would let him go. Or maybe It's comunacation but, if a person say's " I don't love you" Don't wast your time on them and find someone that does love you. Best of luck in love.