I agree with wintergirl. For several reasons. First, most important reason is what wintergirl said. I paste.
"It sounds like you're making really good progress with her, and this seems like an excellent chance to explore the feelings without actually addressing them outright at this point.

It sounds like you have a good awareness of where the feelings are coming from, and you can talk about them in the future if they persist."

Explore, explore, explore. You can teach yourself many things this way. You can celebrate in sensual happy ways that a woman has told you your feelings are normal, and fantasize maybe, depending on how that makes you feel. Also, learn that in RL, it is exciting more if it is revealed slowly. It will be more intense maybe, but private intensity is something bpd's benefit from learning to cope with--not every feeling has to be immediately shared (bpd's commonly blurt out their feelings and I hear that society doesn't always work smoothly when this happens). My T knows my feelings for her and accepts them, but I gradually revealed these feelings, and I actually believe it was more pleasurable for both of us that way (yes, sometimes a T can feel pleasure from positive attention--they are human). My final point is that it would be better to tell her when you don't have to follow it with: "I'm not physically attracted to her...for one thing she's older...no offense..." See how that might hurt a woman's feelings, even if she is a T? In case you ever want to try physical relationships in RL, I advise you to remember that women are very sensitive...about our age, our bodies, etc. Even a professionally trained T could feel hurt by this, somewhere in the depths of her mind even if she wouldn't say so. That wouldn't be good practice for RL. Forveralone--you sound very sweet and sensitive, so I'm telling you this so you can expand your already loveable guy self. A delay in telling her will give you both time to feel tiny what-if's--I love that feeling. Sometimes it can keep me going along and coping for several weeks or a month or two. Whatever works, right? I feel love toward you from reading your post and thinking about it, and responding. I hope anything I've said here helps you. And wintergirl, too, in in this post; she has great advice.