I would express your feelings to your T. With him being so apologetic, he probably didn't do it on purpose, but it appears to have brought out some abandonment issues that would be very important to bring up in therapy. I would definitely bring this up in your next session and the mixture of feeling you feel. write it down, type it in an email and read it to him as your feelings change back and forth over the issue.

I have done that in the past before. I find if I write my mixed emotions down as I feel them and then read them at the beginning of the therapy session, I don't forget what I wanted to get across and I express my feelings so we can discuss them...