This article focuses on the relationships between Leafy and Snowball. The two didn't have much interactions with each other as Leafy made it into the Top 3, while Snowball was eliminated early in Don't Lose Your Marbles.
Episodes suggesting a friendship
Episodes suggesting a conflict
In Insectophobe's Nightmare, Snowball tied Leafy and the other contestants together and pull them forward in the race himself because they were too slow.