Dipper and Bill dated each other for a very long time but then Bill became evil again and mad and broke up one day Dipper adopted you. you can be a girl or boy idc but you never knew you had a second dad kinda because Dipper still loved Bill and Bill still loved Dipper but his evil got the better of him one day you were hiding as your dad was fighting Bill physically when Bill see you he smirks also bill still calls dipper Pinetree because of his hat