How do I handle this?

So, I told my enby (non binary) friend that I was questioning my gender and felt like I should have been born male (I don't know if this is the correct terminology or not, sorry) a couple of months ago. And everything was fine, we talked, whatever. Then, they had to go to a mental hospital because of their cutting and suicidal tendencies. They had been trying to get into the place for a while, so I was happy they finally got it. So a few months go by, and we have to go to a church event (we are both atheists, so it's annoying). I guess they forgot what I told them because when I joked about dressing like a straight, white male (I was wearing a hoodie with a flannel over it, just to put it into perspective), they said, "You do! But it works on women." And, I don't know, that really hurt me. I trusted them with my deepest secret, and they just forgot about it. I know that they had other, more important things to focus on and remember, but it still hurts. It's like, I support them 110%, but they can't even make the effort to remember something that was really important to me. So, should I talk to them about it, remind them about me questioning, or just not say anything at all? Btw, I would prefer it if you say not to do anything because of my anxiety, but pls just give advice regardless of that. Also, if I need to clarify anything at all I'll be happy to do so. Thanks!