Red was living on his own island just fine - sure it was away from everyone else and it has always just been Red but he was fine with it
THEN suddenly a random guy pops up and everyone immediately befriends and adores him, frustrating Red so much. he hated this guy.
it would have stayed that way, that is until he was forced to stick with him, abandoned by his own home and stuck at sea.
{also every character is humanoid so they arent birds and pigs but instead they have rare birds and pigs on their island}
[ALSO IF IT WASNT HALF OBVIOUS - its a Red x Leonard fanfic :P]