Steve wants to be a Munson to distance himself from his family as much as possible.
Eddie wants to be a Harrington as a 'fuck you' to everyone who bullied him in school (look who is married to king Steve now fuckers) and because he knows that Steve's parents would absolutely hate it to share their last name with a long-haired metalhead/ accused serial killer.
The solution? They switch names.
Everyone around them finds it so dumb because you can't even tell that they are married if they don't share a last name but Steve Munson and Eddie Harrington find it hilarious.







