Stan: One day I'm gonna burn this fucking place to the ground and just disappear.
Tweek: O-oh god man . . . count me in.
headcanon: after Stan moves to the farm Tweek starts getting sent by his parents to bring deliveries to the Marshes. Over time they start to bond over their shitty drug-peddling families (well, just Randy in Stan's case.) Tweek loves Stan's death metal music, Stan finds he really enjoys Tweek's energy, and they end up supporting eachother's rehab journeys.
they're both in college at this point, but couldn't afford to leave home yet or it's the summer between terms