Ladies what would do in this situation?

So let’s you and your boyfriend were friends for a long time before dating and you end up moving in together but he’s never interested in having sex with you. This is a guy who believes sex is an extremely important part of s relationship, a guy who is known to have a high sex drive, and the guy who you lost your virginity to. Say you found out that he told someone that the sex with you is bad and that the chemistry just wasn’t there. How would you feel and what would you do?