That's a delicate thing...honestly for me, it would be a deal breaker...
Believe it or not genital herpes is prettty common, they just arent always visible..you can cover outbreaks. Id say you definetley should tell them, idk if its something id say right away bug if you wanna have unprotected sex it wouldnt be right not to even if you dont have outbreaks at the time...if the relationships important and lasts, you will have to eventually
it is a sensitive situation but you need to tell them before any sexual acts occur or else you could be in a lot of trouble.
Nonchalantly, while you are about to share a drink or something. Stop him before it reaches his lips and say you might not want to do that. My buddy sire wishes his girl had tole him.