Squilvia is first seen entering the Krusty Krab. Squidward sees her and quickly falls in love with her. Squidward tried to talk to her, but was very nervous and SpongeBob offered to train him to go on a date with her.
She has been confirmed to be be a permanently one-off character and will never appear again. In fact, Vincent Waller even suggested that she probably broke up with Squidward out of distaste for his clarinet playing or died after being eaten by a whale.
Squilvia has brownish-red rectangular pupils in light yellow eyes (that are slightly brighter in color than Squidward's). She has short black hair, black eyelashes, a curved nose, and dark pink lips. She is a slightly different shade of blue than Squidward. She wears a pink dress with ruffle tips and carries a velvet purse. She talks in a poetic style.
She was seen entering the Krusty Krab to order food. She found the decor quite interesting. Squidward immediately fell in love with her, and tried to talk to her, but was too nervous. SpongeBob helped him, and told Squilvia about Squidward, and she agreed to go on a date with him.
Unfortunately for Squidward, it had been a long time since the last time he went out on an actual date, but SpongeBob offered to help him by setting him up on a "practice date." However, the practice date went terribly, causing Squidward to yell at SpongeBob to stay away from him, but then he turns around to see Squilvia standing there, and she admits that she had witnessed the entire exchange.
At first, Squidward assumes that Squilvia won't go out with him since he acted like a jerk to SpongeBob. But Squilvia tells him that she actually likes him even more, admitting that she thinks "a guy who can't take fools lightly is 'totally dreamy.'" She then tells Squidward that they should go eat.