I would be jealous and upset and I'm not sure if I would be able to bring it up with T or not.

I'm thinking of some reasons for the closeness. My T does EMDR and I asked her why she moved closer to me once and she showed me the wires on the buzzer thingies. They didn't stretch so far! She also sits next to me on the couch when she holds my hand. Maybe it was something that came up for that client and was a one-time occurence. Maybe the client was showing T photos. I've had a T sit closer when I'm showing my photos.

I hope you're able to bring this up in your session if it continues to bother you. All of our feelings our important to discuss in theray.