He didn't know why he was here, or how he'd gotten there for that matter. He guessed it was just something he had to do, in order to feel okay with what was going on in his life at the moment. He was happy when he never thought he would have been again. Sara made him happy, happier than he felt he deserved sometimes.
And thus, here he was. The forget-me-not was held loosely between his fingertips as he walked up to the headstone. He didn't know why there was a headstone in the first place when there was no body to bury, but her parents had done it. He guessed it must have provided them some sort of comfort, and judging by the numerous arrangements of lilacs, they needed comfort often.
It was his fault she was here, regardless of whether her body actually was. If she hadn't been with him, she would've been alive and well. If she'd gone to Chicago with that boyfriend of hers, they'd be married, and he was sure of it.
But here she was, and here he was. He got to be happy, while she would never experience even the slightest bit of happiness ever again.
"I'm asking her to marry me, Kate." The declaration was soft, almost afraid, as he stepped forward and set the forget-me-not down. He opened his mouth a bit, trying to find something else to say, but nothing came for many moments. Then, with a crestfallen finality as a single tear escaped his eye, he whispered, "Of all the boys you could have landed, why'd it have to be me?"
He leaned down and kissed the granite, touching it affectionately, before turning to head back the way he'd come, pursuing the happily ever after Kate would never have.