When dating someone, do you tell the other person that you're dating someone else? Like, do you think it's their business for you to know that you're dating other people? Or do you just keep it to yourself? Me, personally, if you tell someone that, like, if you're automatically, like, dating that person, I think they're going to assume that, okay, like, you're dating other people. Just because you're dating doesn't necessarily mean that you're having sex with that person. So I say you can either tell them you're dating other people or you don't have to tell them you're dating other people. up to you as to what you're wanting to do.