Word of advice, dude. If you ever date a girl, make sure her best friend isn't jealous of you. [It's too late for him to think of how he'd phrased it. Yu had saved him. Yu probably tried to save Dipper, too, and it hadn't worked. This was a bad, bad way to start this story. Oh well.]

Or...it's what I can guess, anyway. [He takes a deep breath, sighing after that.] It was the mask just like...I don't know. Getting to her head or something.