You and Dipper have been dating for a long time now, so it's kind of obvious that he told you about the paranormal and especially about Bill Cipher. Did you also know that Bill has already entered his body once, but that was a long time ago.

Present

Today you and your boyfriend Dipper were going to go out on a date, but when you went to the Mystery Shack to meet him, he was different... You two agreed to go casual on your date, but he wasn't casual at all... He's wearing a black suit, he's not wearing his hat and his eyes are weird... They looked yellow... Glowing? That's weird... But before you could say something, he speak up:

"Hey cutie! Ready for our date?" He speaks as if he is bugged and his voice is more... High-pitched?

That's weird... He's never called you "cutie" before just like that... Always with a context... But not in this case... Could it really be him?