Squidward and Cat Relationship

Squidward finds Cat to be just as annoying as Spongebob and Patrick, from her voice especially, her personality, and the fact that she bothers him nonstop everytime she sees him. Despite knowing he can be grumpy most of the time and is aware of the things he did in the show weren't very great like being selfish and rude, she also can see that he can have a good heart, which is why she's so fond of him most of the time.

He doesn't even know why Cat even tries to waste her time trying to befriend him when he clearly isn't interested in befriending her. Although, he does give her some advice when she once in a while comes to him about it but is brutally honest while doing it, and he does find her to be mostly a sweet girl, he just finds her annoying at times and doesn't like when she pesters him when he doesn't wanna be bothered.

He also appreciates that she sticks up and defends him whenever he's being put down or mistreated unfairly, she even said that he's the best clarinet player she knows, which warmed his heart and most likely grew to be a bit fond of her.