My therapist does feel sadness or anger or joy when I tell him about some things that have happened or are happening to me. Once he even said he was affected that I had just been treated very badly that day and that it's normal to be affected when someone important to you is treated like that. It's comforting to me. At the same time, I find it so comforting because I know he takes good care of himself and that he has a good support network too. So I know that he's not too affected. I think this balance is important.