You know what? That is exactly my very worst fear about my relationship! We are a lot alike, you and I, it's kind of scary!

I am also bisexual and I can't wait until Jocelyn has the proper parts, because I'm not allowed to touch anything that's already there (you know what I mean?)
So, lemme ask you this: How long have you two been together and what stages in your lives are you at? Curiosity, really, but it'll help me dole out the sage-like advice that I never follow myself! Just kidding.

I have no sage-like advice, just good ol' feminine intuition!
Basically, to solve my own insecurity about the possibility that you and I both fear, I simply rationalized that no matter what relationship you could be in, there is always the possiblity of being left for any multitude of reasons. Look at the divorce rate among the general public. And besides, you're probably not the only one in your relationship that fears rejection because of transition. I know for a fact that Jocelyn is every bit as worried that I'll leave her for a man as I am worried that she'll leave me for a man. She's probably even more worried because I could potentially leave her for a woman that already has all the "woman parts". And we can promise each other until we're blue in face that we won't leave, but I don't think the fear ever really leaves either of us, but somehow, that's okay. Life is about chances, and anything that's not worth the risk isn't worth it at all, right? That's how I see it, anyway.