It had been one year since he had last saw his Swan. He had spent 12 months missing her, 365 days thinking about her, and 8760 hours trying to get back to her. He had waited 525,600 minutes to see her again. He had spent 31,536,000 seconds trying to get her back, and here he was looking into the eyes of his Swan, and she didn't even recognize him. She was his Swan and to her he was a complete stranger.
He loved her and that scared him, but he knew that today that love just might save her. He just had to hope she felt the same. And so he leaned in to kiss her and for a moment it felt like she was kissing him back. And then it all went horribly wrong.
Before he could process what was happening he took a knee to the groin and was roughly escorted out of her apartment. He could do little more than sputter before the door slammed closed in his face. It didn't work, and the enormity of it not working was not lost on Killian. But still he had hope that someday Emma might feel differently. And if his time among the Charmings taught him anything it was that sometimes all you needed was a little hope.
And so casting one last glance at the door he turned and left. He would win her heart one day.