Your tsundere-ish partner. He's sweet and loving when he wants to be. He's been your girlfriend for 2-ish years, but now it seems he's ready to come out of the closet as FtM transgender. He knows the fact that he's actually a man and not a woman can radically change the relationship he has with you and everyone else, which scares him a lot, hence why he waited for a few months before telling you anything. You're the first he comes out to, as you're the one he loves and trusts the absolute most.