How to tell him I don't like his cum

Shelby

How can I tell my bf that I don't like the taste of his cum? he's been eating crap a lot more and it's starting to smell different and taste horrible. I've been playing the , I want you to cum on me cuz even the precum taste bad🤧 he's very insecure already about himself sexually and in other ways. Idk how to tell him without hurting his feelings. he's very sensitive to that kinda stuff.