>>3380910that's how they got together, but in later episodes as well as the second game they're shown to have actually grown to like each-other and act like a couple even in private. in the game there's even side quests where you help them patch up their relationship and they even go to counseling together
also in the game, when you have them both on your team in combat they have some really cute lines (like tweek gets upset when an enemy hits craig, or craig tells tweek to believe in himself)
