Yes, I agree with ALL the other wise, wonderful posters, @
wanderingdiva!

Bring it up to him! Ask him why he isn't interested in Sex anymore. Talking things out seems like the wisest option. Based on his reply you can decide what to do. Feel free to come back here when you ask him and we'll try to help you out. Feel free to PM me anytime as well. I'm sure plenty of others will be glad to help you. Wish you the BEST of LUCK with BOTH of your Lives! Sending many safe, warm hugs to BOTH You AND Him, wanderingdiva!