Based off the classic SpongeBob episode as well as the SpongeBob/MLP fanfics by Ultimauser50.

Squidward quits his job at the Krusty Krab after being accused of stealing Mr. Krabs' first dime. As time passes by, Squidward becomes homeless, but Spike allows him to live with him and Twilight. But when Squidward starts to become spoiled, Twilight is starting to lose her patience on how he treats her and Spike.