Hook's Kiss Doesn't Work
Hook (Colin O'Donoghue) summons Emma (Jennifer Morrison) and the two are taken to her home. He tries to give her true love's kiss in order to change her out of being the Dark One but it doesn't work. Emma tells him it's who she is now and still wants to be with him, but he walks out on her. From Once Upon a Time season 5 episode 2, "The Price."