I know how much you are questioning your T right now and I badly want to give a neutral response but.... one of the things I am getting out of my therapy is the experience of being 'present' with someone and speaking my thoughts, rather than just keeping them to myself, and being in some way dissociated. My T herself is very present and seems to pretty much speak her thoughts (which I find hard as her and my thoughts seem so disparate).(I'm sure she holds some things back). I feel like your T is not being 'present' or genuine with you I would expect him to say why he is smiling/laughing. Is it an expression of his affection and does he not want to speak that out loud? I consider my T's rare smiles to be golden and can identify with you liking it when he smiles.