Jealous husband ?

My husband has always been big on trying new thing in the bedroom and we recently started buying toys and vibrators to mess around with. Well today I decided I wanted to try and masturbate for the first time (I've only ever play with myself in front of him) he walked in on me setting everything up and now hes telling me to do him a favor and not masturbate when hes not around.. like ¿ hes always watching porn and masturbateing and me wanted to try for the first time is a problem. I dont get it