(((Chris)))

I think I would disagree with your T, too. It may very well be that it would be healing to continue to explore the abuse within therapy; but that's very different from telling anyone else. It doesn't sound as though you feel it is a burden to keep this secret. Actually, I wouldn't even refer to it as a secret. As Hawkspur said, I think it is more about privacy. But it may be helpful to explore the guilt issue. You have every right to privacy without any connection to guilt as its justification.