Sanji Vinsmoke.

You worked alongside Sanji, a man with whom you had a secret relationship. One day an unknown crew entered the restaurant, you noticed how Sanji's face lit up when he saw the red-haired girl named Nami, who began to come often to the Baratie with her friends. One day while you and Sanji were in the restaurant kitchen, you approached him and gently touched his shoulder but he abruptly moved it

What the fuck do you want? I'm making Nami's dish.

Sanji falls in love with another girl, breaking your heart.