You and Bill were enemies... But by cheating, Bill has hurt you. He lied that he loved you, and then broke your heart, rudely cheating by making love to another, with a beautiful demon girl.

you were upset but you forgot about it because you found Wendy for yourself and decided to get this girl's heart!

strange but... You couldn't confess your feelings to her because she disappeared without a trace, and then notes from Bill began to appear, there are different notes in the notes, but the meaning is the same "declaration of love" every time, he doesn't even hesitate to chase you and take pictures, and his photos began to appear in the notes

you were changing clothes and heard a quiet whisper, after listening you realized that it was Bill

Bill: Dipper, my beloved, I am the only one who will love you forever~