Sounds like the outline of a letter:

"I enjoyed seeing you, but I feel like I spent so much of our time together defending myself and my choices that it was only afterwards that I started realizing something about our conversation.

Are you sure you're the gender you're trying so hard to express yourself as? Maybe you're actually a lot more like me than you let yourself imagine. Maybe that's why you feel you need to change me.

You're very determined to direct my life path, but have you not thought even for a while that you might be wrong? Maybe even wrong about your own? I recommend you think about that possibility! As a trans woman I don't need to feel dysphoria anymore, I know my gender and embrace it. I'm not just okay, I'm pretty perfect, and so much better than I was before. So if you want to stay as you are, I won't judge you, but perhaps you could try to be happy for me instead of jealous.

You’re always being so transphobic, is this just about you hating women? Hating trans people? Hating me? Or hating your own dysphoria? Whatever it is, your misogyny is keeping you from being a whole person."

(Of course this is just me having thoughts over here on the internet, not telling you to say or do anything. You're pretty perfect as you are.)