Absolutely bring this up. In my opinion, this is huge. My T would have told me because he knows he has to be extremely honest with me; whether I like it or not. Then we would work through all of it, good or bad. My trust in him is paramount and he knows how long it's taken me to "let him in". If I found that out and T never disclosed, poof, trust obliterated and I would be enraged and he would be toast. I think you will feel better speaking about this.