I've heard that men who smoke weed every day can have a harder time getting and maintaining an erection - so he may not be able to perform as well as he used to and that could be embarrasing for him. You may want to see if he will take an all-natural daily supplement to help increase his sex drive and energy level. There is a terrific product called Mdrive designed specifically for men looking to increase their sex drive, strength, stamina and overall vitality. It is made from herbal & mushroom extracts I know a lot of men who take it every day and they love it. Good luck and stay sexy - whether he appreciates it or not. Focus on taking care of YOU, and even enjoy masturbation to satisfy your desires.