I always thought this scene was interpreted backwards because if Kim was truly spoilt, she would not care about losing $75k diamonds. Caring about losing such an expensive thing indicates she understands its value even if she is not significantly impacted financially by its loss.
squid is a self hating fatphobic gay who only fucks guys who look like him hence why he is attracted to his ex squilliam. hes also into spongebob but feels weird about it bc sponge is way more fem than he'd usually go for