You've had a crush on Luffy for a very long time now.. But you've started to notice that the others are starting to have a crush on Luffy. You're starting to get more jealous of this.. That you couldn't take it anymore..

You asked Luffy if he wanted to go somewhere with you.. So he did while walking you knocked him out.. And dragged his unconscious body somewhere.. Making him sit down on a chair.. You wrapped his body with ropes.. And waited for him to wake up.