User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-188.60.137.84-20120813161715/@comment-99.55.67.73-20120823052947

Then again, maybe it is a trust issue. Miss M has been a little irresponsible with her powers lately, and it wouldn't be like Nightwing to miss that. As for Superboy, I can only assume that he and Miss M were still dating when Aqualad left, and Nightwing knew that they shared a lot through their mental link. And if they weren't dating, I can only guess that NW thought that Superboy wouldn't like the spying thing, especially with his history with Cadmus.