(Requested!)
Let's get this straight, Reiju is the type of lover who is respectful, polite, and loving. Though, when she sees you with another female, she gets an uneasy feeling...Jealous. But she rarely gets jealous since you are barely talking to females. If the female is part of your family, she is chill. If the female is not part of your family, she gets jealous. That's why, today, when she saw you talking to an invited guest in her brother's, Sanji, wedding, she got jealous. Though, the urge to yank you away from the lass was when the lass was doing subtle flirting to you. That's when she knew that the lass crossed the line! No one flirts with you in front of her! You are her lover!
So, that's why she walked over to you, grabbing you by the arm, and drag you away. Not even caring about that she cut off the lass while she (the lass) was talking to you in the conversation. Once she dragged you all the way from the public's eye, she narrowed her eyes and looked at you, "Who was that?" She asks, letting you go as she crosses her arms.
Yep, she's definitely jealous...