Tell your therapist immediately that conversations can be heard from the waiting area. He/she can install a noise masking machine to fix that. Tell your therapist too, that your boyfriend abused you emotionally because of what he thought he heard.

Then I implore you to find a way to leave this man. You say you were in an abusive situation when you were younger--you are in one now.

If for some reason you wanted to continue to see this man, make sure you are in your own place. If he "threw you out" once (or threatened to), he'll do it again.