I just have this headcanon
(And I think I wrote a ficlet)
That Emma just hates it when Killian goes shopping with her. She’s just like “can you stop taking the junk food out of my cart just so you can replace it with your healthy crap? What the hell is that?”
And Killian’s like “kale.”
And Emma’s just, “please. Just let me buy my Oreos.”
He makes a big speech about almost losing her to the various monsters in town, and he’ll be damned if he loses her to clogged arteries.
She gives him the evil eye as she eats her broccoli that night.