Slip Knot

How did Hook make the decision to back off even after promising to win Emma's heart? And now that he's done so, where do they go from here... "I'm going to back off for the sake of the boy. His parents should have a fair shot of making it work without a devilishly handsome pirate standing in the way...I'm in this for the long haul, and you've already walked out on Emma once."