So uh, the thing about Corney is Laney Penn (the girl with red hair who apparently has green eyes? Idk) is in love with Corey Riffin. In an episode, they kiss (Episode 25 of Grojband, Metrognome). Corey never really shows any affection towards Lanes til after that. Also it's official that Corey has blue eyes because in a scene in an episode, he has blue eyes, which I sadly do not have. So take this pic of the kiss (it was an accident btw :') I have a gif but the file is too big ;-;)

There's only 26 episodes which means everything except when they're in space suits is before the kiss (not including the gif that's from the online shorts where Corey is tuning his guitar and Laney is watching him.)