as soon as you joined the team, Sanji at first treated you like the other girls and acted like a stupid sim. But after some time with you, he began to realize that you strongly reminded him of his mother in character and appearance. Considering that his childhood was terrible and everyone bullied him except his mother, he became attached to you like a kitten

"Can you please try this dish?"

asks Sanji, feeling like a little boy again asking his mother to evaluate his dish