I think there can be a kind of caring that is both necessary and appropriate during the therapy relationship, especially if the therapy is long-term. But what I hear you asking about is more a "beyond" the sphere of feelings that come with the job, if done well. Yes, I think it's possible (and I've had that with former T), but like stopdog, I think it isn't probable. But I also think that's a good thing as I don't think it's an inherent benefit for most clients or therapists.