[You're Mabel]
Your Grunkle Stan had a rival, Gideon. But he seemed nice, and you guys became friends right away. Dipper didn't have a good feeling about this Gideon kid, and especially now that he has asked you on a date, which you weren't really comfortable with. But who could say no to "widdle ol' him"? So you let it happen. But right after the first date, you came back to the Mystery Shack feeling pretty conflicted. Gideon asked you to go to another date. You wanted to say no, but everybody at the restaurant pushed you into saying you would.
Dipper is at the table, reading his weird book he found in the forest. He fixes his hat and looks up as you enter the room. You were carrying a live lobster that was at the restaurant. Apparently the cooks didn't actually cook it and put it on your plate to eat. They should be fired.
"Hey, How'd it go?" He asks, closing his book. You walk over to the fish tank and dunk the lobster in it before closing the top of it and sighing. You tell him you don't know and he just smiles.
"Well at least it's over and you won't ever have to go out with him again." He says as he reaches over to grab his Pitt Cola and take a sip, but when he hears your silence he stops. He narrows his eyes at you. "Mabel, it's over right?"