It is bad to abandon friends.
Jake drives his friend to a party where Jake meets a girl that invites him to her place.
Jake wants to go to the girl's place.
Jake asks the girl if his friend can come to her place too, and she says yes, so they all go together.
Jake goes to the girl's place with her leaving his friend at the party without a way to get back home.
Jake's friend is happy that Jake didn't just leave him at the party when he went to the girl's place.
Jake's friend is angry at Jake for just leaving them at the party.