I find the term "transference" kind of pretentious (therapists use it in a way that seems to imply that this phenomenon only happens in therapy) so I tend to not use it. But if you mean by transference that the feelings you're having are not really about your therapist, then yes I believe romantic feelings for a therapist are transference. Of course a client can find their therapist attractive at first sight but the kind of anguish, torture and longing for a therapist often described on this forum, it's obvious to me that this is some sort of fantasy or a distraction for the client. I think these kinds of feelings often reveal that something is missing in the client's life and they sort of latch onto that attraction (consciously or unconsciously). If the client met the therapist in another context, I highly doubt they would have this attraction but that's because the therapist in real life is probably boring. A regular, ordinary person whereas in therapy everything gets heightened, including the therapist's supposed desirability. Like I said, I believe these feelings are a fantasy, a distraction and often the sign something is missing from the client's (romantic) life.