What if-
What if the fight's because Buck won't stop bothering Eddie with the dating thing and wanting him to talk to some girl at the diner AND THAT LEAN ON EDDIE GETTING OUT OF THE CLOSET YASSSS
911 and nashville crossover this week that is 2 hours long, buddie being the only ones involved, and next week is 9x13 which is the buddie roadtrip episode that’ll be focused on them
ALSO another super telling thing about eddies reaction to buck at the auction: normal best friends would be cheering each other on!! hyping each other up!!! and yet eddie was just in AWE. like he was mesmerised. LOOK AT THIS !!!! are u KIDDING ME????
personally i think the "i'm your renter" scene was eddie's feelings realization, while this scene was eddie's "i want to slam him against a wall and shove my tongue down his throat" realization