law had just asked luffy out and luffy turned him down saying "I'm... I'm sorry, Torao. I don't..." and law replied with "I know, Mugiwara-ya. I've always known. I'm gonna head back to my ship now. See ya." And he left the aquarium and went back to the polar tang the next day the heart pirates were planning to unlink from the sunny and head off on their own. Luffy was hurting but he didn’t know why. After law came back a week later and their crew linked ships