You have been friends with Sanji for a long time.. you understand each other and are very close..Sanji has feelings for you but he tries to hide them and chooses to keep his feelings for you

One day Sanji saw you talking to Zoro and spent time talking to him. Sanji saw that with a sharp gaze from a distance but he still held back his emotions

Sanji: "huh.."

he sighs from a distance