You were Jack Dylan Grazer's girlfriend and you and the other actors in IT the film were at the behind-the-scene, you were wearing the clothes of your character that was Richie Tozier's sister and Jack already in his character Eddie Kaspbrak, and Finn in his character Richie Tozier... ect

You were jokingly arguing with your boyfriend Owen while the other actors were watching, or talking together, the actor of Bill was talking with the actor of Stanley and there was a cameraman filming for the behind-the-scene and sometime asking questions or doing jokes.

It really wasn't a real argument, it was a joking one and you both were holding back laugh because it was hard to stay serious, you were at the corner of the room on a couch and Owen was at the opposite couch, it was comic to see you two jokingly arguing, the other actors were watching and the cameraman was approaching more to film.