So let's recap:
Arnold: Quickly got bored because his ADD gave him neither the stomach or patience for anything that wasn't bright, shiny colors constantly moving right in front of him. Started being lul random and grumpy like a kid without his Adderall.
Erin's wife: Tries to occasionally get them to do things but constantly whines that she, as a woman, isn't given enough to do or whatever and because I don't know what's going, and isn't this like, a game, guys? OMG, it's so hard and confusing.
Cool Guy Ross: Doesn't give two fucks because he always checks out of everything the Grumps do within two seconds because he know's its BS and just free money anyway. Decides to spend his time amusing himsefl by annoying others and trying new ways to get a rise out of his wife.
Commie Holly: Vacillates between wanting to do grandmother voices and act like a middle-aged fantasy character, and caustically grumbling because she actually has experience with gaming and knows they'll never get anywhere with the chucklefucks around her.
Jew Barry: Continues to mumble and play in the corner by himself until someone needs him to do something, at which he happily, pathetically obliges.
I'm ashamed to admit I once thought they should start playing this because I might be good for them to try something actually creative. Why, oh why, did I think this would change them?
They should play a White Wolf game. At least then Erin can be a werewolf and try to creep out everyone at the table (he's surprisingly good at playing a villian/monster).