This happens frequently. I appreciate you being open about your experience. When I read your account, I'm feeling your resistance to what is happening. This is important because if I'm feeling it based on your characterization of the dynamic, your client is feeling it as well.

I was watching the movie 'Steve Jobs' and there was a scene where Steve asks Joanna why his daughter is asking him questions that he knows she already knows the answer to. She says children do this because its comforting/reaffirming...it reaffirms the system. This is so indicative of the systemic process of therapy. Right now, you are in the middle of a systemic issue. Your client is in love with you, you are not in love with your client. This is a therapeutic problem and one where the parent/lover figure is outside the very real experience of love and devotion being offered by the child/paramore. One which cannot be resolved unless you 'fall in love' with your client. Because of the dynamic, this isn't happening...and this is YOUR problem. As a mentor once said to me "If you can't love them, who will?" I have been here myself. It was and is only resolvable by a reexamining of your capacity to love.

Boundary issues aside (I'm assuming in this discussion that there are no pressing boundary issues), what your supervisor might be referring to by processing this positively is that you need to refrain from viewing the eros-tuned transference as a detriment or obstacle to therapy. Rather, the 'positive' way this matter is handled is through a (spiritually?) expansive process.

Let me be more direct. What are the interpersonal areas you are facing as 'growing edges?' What keeps you separated from other individuals in an erotic (but non-sexual) way? How are you with relating to people in a deeply intimate way? This is going to inform how this issue unfolds.