He’s still in love with the idea of Emma, the image of the woman he’s built up in his mind. Every time Emma and Hook have spent any significant amount of time together, it’s always been under distress in a far off land where adventure and danger lurk behind every corner. And guess what? Danger can be exciting and cause the adrenaline to rush, which many people confuse with feelings of “being in love.
Those “circumstances” are also not what Emma wants in the long run. She wants “a day off.” She wants a house with a fence and a dog and probably a back porch where she can drink a glass of wine and watch Henry play on a swing set. In other words, she wants home. She is perfectly ok not fighting dragons or defeating giants or dealing with annoying immortal teenagers.