your parents and his parents are besties and they do everything together and of course they expect the two of you to be bestfriends too, but when the two of you two were just toddlers. You were just playing with your toy cars when he asked you if he can borrow and of course you said no so he got angry to he broke your favorite toy cars and since then you hated each other

-FAST FORWARD TO PRESENT DAY-

The two of you kept pranking each other even when you two were teenagers