Well, I have had therapist tell me he thought about me a lot outside sessions. Actually we have had many conversations where he told me though about me the other day. And he also smiles when he sees me. Damn. Maybe I’m stupid but it does not indicate any romantic interest. But back to you - you are trying desperately to see everywhere he’s into you. It can be true and it also can be a lie. He can be caring, nice professional (which he is by your description) and you see that as interest. Or he can actually be into you. But the last sentence that this is group therapy and not individual so not the same ethical rules apply is your wishful thinking. They do apply. And he cannot date you ot be with you in any capacity.