Current T something like;
Dear Chummy,
Don't listen to your punisher. You are good the way you are. Listening to your punisher doesn't help you.

PrevT (with who I haven't really have closure):
I don't think about you. I don't think about clients outside sessions. I don't think about you at all, because you're not really my clients anymore. I'm glad you aren't my client anymore. Your attachment to me was annoying.