There is more than one way to be out.
Maybe he just doesn't want his family and friends to know but he’d be ok with yours knowing, or maybe you decide on a mutual third group of people who you have in common that he feels comfortable sharing that information with and wouldn't feel judged. Even if that’s not possible, consider that for him, just being with you, might be his way of being out!
Your relationship is valid.
Ok, so you can't post his pic everywhere, your friends don’t know him (and that's probably a good thing!) and you may not know his family, but who knows, he might be sparing you! In any case, it doesn't mean that you aren't a real couple. If you're with him and he's with you, you’re together — and that's called a couple!
You are not alone.
Men keep their relationships to themselves for various reasons. Sometimes it's because, they know that it would ruin their relationship with their family or because it’s not safe for them. Sometimes they are just scared. You are not the first person to have someone in your life who you love that is not as open, as loud or as proud as you are, and just because they aren’t doesn’t necessarily mean you should give up on them.
You should always do what you feel is right for you. If that means being with someone that's out, you need to consider whether or not you're willing to give up what you have with your not-out Beaux to have that. You both have decisions to make. The decision for you is whether or not you want to continue being involved in a relationship that relegates you to being someone’s secret while for him the decision is about whether or not, and if so how, to come out of the closet in a way that doesn’t involve you forcing him out, or him keeping you in.
Coming out is a process and its not always easy. We encourage Beauxs finding themselves in situations where their partners are not out to give pause in considering all the things that they may gain as a result of their partners coming out and spend a little time thinking about the things that their partners may lose after doing so. Trying to force someone to come out for you will more than likely drive that person away, destroying the very relationship you’re trying to hold on to. A Beaux's relationship, much like his life, is about his choices. We don’t have the power to change someone and its important to remember that because they have to want to change. If you were fortunate enough to come out of the closet of your own will and volition, you have to allow your Beaux the opportunity to do the same. At no point should we ever assume that its our responsibility to force your Beaux to come out of the closet, that's for him.