In my situation, my abuser was a very, very intelligent person, and I was clever myself, which meant that the torture got onto a sophisticated, complicated level, too. By knowing what suspicions I have for my T, I get reminders of the complexity I'm dealing with, trying to get over. Yes, I'm sure the fears you have about therapy are clues to what happened to you.
But, Yaku it sounds like your T is very good and strong, and this is a great opportunity to do all in your power to trust and be brave. 'scuse the poetic turn here, but I'm sort of in the same stage of therapy, and it's very exciting and scary in the same day.