Wow this is hard stuff to ask about. I never would have thought to ask my therapist if he liked me, but one day he volunteered the information. I asked him what he thought of me (and my issues and progress), and he said "I think you're trying to ask me if I like you." Of course I denied that that was what I was doing, but he may have been right. He went on to tell me that he liked me, and I was so happy.
Just ask. Get it all out there and then you'll know whether it's worthwhile or not.
(Great advice from someone who would be way too chicken to do that, eh?)
Sidony