When you're outside the Cave of Origin and your rival (In my case May), begins to talk a bit "lovey-dovey". They talk about how you've been on this journey and they're always looking from behind you, and then they just drop the friend zone bomb so hard. What makes it even funnier is that when you're watching the meteor shower w/ your rival, you guys sit on opposite sides of the bench.
Well played Gamefreak.
Well played Gamefreak.