Dipper and Pacifica have been dating since they were 13 since dipper let his feelings out to her and she had felt that way since the party, where she dis obeyed her parents and lay in the townspeople and defeated the lvl ten ghost ( there's a summary of season 2 episode 10 for ya)in a day. But this didn't come without "consequences" as her fake friends called it. Pacifica lost just about all of her popularity and fame, Stan and Pacifica's parents were against it and didn't let him in the house much (harsh) and Mabel practically stalked them to make sure "no funny business was goin on". Things were rough for the couple, but surprisingly they hadn't got into any fights and never got mad and agreed about almost everything. They completed each other and brought the best in both of each other. (Maybe they were made for each other ooh❤️) they (yes even Pacifica) just started to not care. Eventually Mabel started to like them together and Stan just started to not care, but Pacificas parents were still very strict. They didn't let her go out to see him, so she had to sneak out and lie. Pacifica hated it, lying to her parents. But seeing dipper out weighed pleasing her parents.