It would sound obvious, but you can still ask him - he will have to find the right words to respond with, but supposedly they get trained to handle attractions coming from patients. If I were him, I would say, with enthusiasm, that yes I would in a social setting, but we are not in a social setting. In other words, I would try to give you a positive response - positive without reservations - and at the same time firmly state the boundaries and constraints of the therapeutic relationship.

Remember that doctors are not supposed to date their patients. Patients do not have a reciprocal duty to doctors, because the relationship is asymmetrical - doctors hold patients' trust and are supposed to further patients' best interest without exploiting the patients' position as it is considered vulnerable. You, as a patient, do not have such duties towards the dr. You are supposed to be on time and pay as agreed, plus follow some additional rules if a contract exists between you and the dr., but that is all. You can ask any questions you feel like asking.