>>12700631>Like in B/W you have two rivals - one is friendly and the other is competitive. Your rival that is more friendly gives you his/her fully evolved starter Pokemon after you beat the game.>Trevor>He gives you the Pokédex and is eager to compare and compete with everyone so that he finishes his first>Shauna>She’s friendly and outgoing, and seems to genuinely enjoy all the curiosities you’ll come across on your journey.>Tierno>He is a caring guy and is intent on using his Pokémon to make the best Pokémon Dance team.Shauna and Trevor seem to match up to the descriptions.
Fatty just wants to make a Pokemon Dance Team, so I doubt he's a rival.