You never thought this would happen - she probably found out purely by accident - and now you don't know how to feel. You expected to keep your dirty little cuck fantasies a secret forever, didn't you? Well, now she knows. And what's bugging you is not so much the embarrassment of her discovering this side of you that you wanted to keep hidden from her, but the fact that she's starting to change. Did she start getting ideas from the porn you watch? Has she finally realised that she deserves bigger and better than you?