When Dark King Rayleigh arrives, Trafalgar Law knows for sure that it is time to leave the island. Jinbe is healthy enough and Mugiwara should live, if he ever overcomes his grief and despair.
He gathers his men and makes the last preparations. There are rations to count and medical supplies to consider, as well as a million other little problems, which, if not addressed properly, would unerringly find a way to bite them in the back.
He has his own plans, his own life (or resemblance of it), his revenge, his crew, his current and future allies, his adventures. And One Piece.
There's no time for unnecessary feeling. And everybody knows that any kind of romance is totally overrated.
…She never comes to see him off. And it's ok. He just needs to forget the color of her eyes and everything will be all right.