The second example is an imperative with the "you" added for emphasis or specificity. don't do X don't you do X don't dare do X don't you dare do X
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
GPYOh, that would be the third meaning that I mentioned then. I may have them switched round compared to what Hans intended (though any sense of "Don't you love me!" seems rather unusual).But possible.