Marceline held a huge grudge against her father, Hunson Abadeer, because he ate her fries, as described in her "Fry Song." She also said that she didn't think he cared about or loved her due to the theft and his lack of acknowledgement of her feelings about it, which was more hurtful than the fact it was her fries that he stole.This was made more explicit in Rebecca Sugar's original draft of the song, widely available on the Internet.Despite their undead natures, the two have a fairly classic teenage-daughter-to-father relationship, with underlying love but frequently heated disagreements on the surface, often about seemingly superficial things.In "Daddy's Little Monster," Marceline asks Finn and Jake if they want to party in the Nightosphere.He added that he wanted to ensure members of the farming community, where rumours of arranged marriages are common, understood they were breaking California law.“From what I understand this doesn’t violate Mexican law or their customs where they came from,” Mr Grebmeier told the Monterey County Herald.He added that cultural difference could possibly explain the transaction. Some things are legal in Mexico and not legal here.” Police believe the 14-year-old girl, who is under California’s legal age of consent and cannot legally marry, went willingly with Galindo.But after the payments stopped, Martinez, 36, contacted the police to get his daughter back.
Later in the episode after Finn and Jake free Marceline from the Nightosphere amulet's control, she is shocked that her dad fooled her into wearing it: he told her that it would grant her wishes, rather than forcing her to be the demonic ruler of the eponymous realm.
Marceline's father confessed that he only wanted to be very proud of her, and Marceline told him that she wanted him to be proud of her of who she is.
He says he is proud of her, and smiles, so they may have worked out their issues.
This is especially true if your friends do not like your boyfriend/girlfriend.
Talking badly will only give them more ammunition to throw at you for the reasons why they don't like him or her.