Watched,
Welcome to Psych Central.

I wish that my cyber-hug would help you feel a little better. You stated a few things in your post that concerned me & I don't want you to have to wait for someone else to say what I am thinking.
In my opinion, your bf is being abusive. Emotionally abusive. And, while you may not currently feel as though your bf has some negative power that he holds out of reach, you may want to re-think the situation. Is it normal for your bf to listen to your conversation that you had with your T? To some extent, I'd imagine so. Listening closely, for an extended period of time? Not healthy.
I would recommend sharing this occurence with your T, via PM, ASAP. Let them know how torn you're now feeling. Ask if they have any ideas to prevent this from recurring.
Please don't give up on reaching out for emotional assistance. You deserve it!