Squidward is making a soufflé, but one day he gets annoyed SpongeBob and Patrick's bubble talk, so he splits up their friendship by saying things they would not dare say to each other. The two of them then get angry at each other and end their friendship, unaware of Squidward being the one causing this. Afterwards, Squidward chokes on a fork from laughing too hard at Patrick's rock distorting him into am accordion-like state. Patrick then comes to the rescue and performs CPR on Squidward to save his life and make him be his friend. This slightly angers SpongeBob and he looks up a way to be Squidward's friend as well.
Later, Squidward invites Patrick and SpongeBob to dinner at his house. During the "dinner," SpongeBob and Patrick drink too much club soda and they both become overweight as a result. Squidward leaves his house to go get some more. While alone at the table, SpongeBob and Patrick are still mad at each other, and the two ex-best friends look around the house. SpongeBob hiccups a bubble, and Patrick starts laughing while there are bubbles coming out of his mouth. SpongeBob, while steamed at Patrick, cannot help but laugh. When Squidward comes home, the bubble storm caused by SpongeBob and Patrick makes the house collapse, leaving nothing but rubble.
SpongeBob and Patrick tell Squidward that they both are friends again. He angrily sends them away while he stays behind and cleans up, but an extra bubble comes by and pops on the door. The door loses balance and falls on Squidward, breaking his back.
Differences between the book and the episode
In the book, Squidward sings in the shower. In the episode, he does not.
In the book, Squidward ate some of his soufflé after looking at how completed it was and then boasted about his achievement. This didn't happen in the episode.
While arguing with Patrick, SpongeBob says, "Sticks and stones may clog my pores, but names will never hurt me!" with his hands on his hips. This was not in the episode.
In the book, Squidward goes to yell at Patrick to wake up after he falls asleep during practice. This was omitted in the episode.
In the episode, SpongeBob was wearing a red speedo when he dived into Squidward's back to adjust it into place. In the book, he was wearing his daytime clothing.
In the book, SpongeBob's song was three verses long, with the extra line being; "I'm Squidward's very best friend. He doesn't like anyone more than me!" In the episode, it was two verses long.
In the episode, when Patrick and SpongeBob argue in Squidward's bathroom, Patrick and SpongeBob both say only one sentence, overlapping each other. The book adds this exchange:
Patrick: Oh, yeah? Well, he was my friend first! SpongeBob: Patrick, you're just a backbiting, bathtub-filling blob of- Patrick: I'm rubber, you're glue, whatever you say bounces off me and sticks to you! SpongeBob: Oh, that's really original. Besides, you're such a big blob that everything bounces off you!
In the episode, SpongeBob receives an invitation from Squidward to his dinner party. In the book, it is revealed that Squidward's dinner party took place at night and SpongeBob went there after taking a bath and changing his clothes.
In the book, SpongeBob and Patrick greedily ate the Krabby Patties that Squidward offered before they drank the soda. In the episode, they only drank soda. However, both of the outcomes resulted in the sponge and starfish being extremely fat.