Or he didn't wanna take the risk, however small, that his actions could cost you the life of your son.
[He says this quietly, serious, almost more pointing out this way of thinking, why Hook might have thought of it differently than Emma, rather than outright contradicting or arguing with her.]
It ain't easy, Emma, to not be told things, to feel like you're the last one to know 'bout somethin' important... but sometimes, there's a reason. A good reason, and it ain't all 'bout us. [The words might sound cryptic, but with her knowledge of the world he comes from... well, it's pretty obvious what he's referring to.]