Why does Jerry Seinfeld not like Newman?

Jerry Seinfeld's disdain for Newman, his neighbor and mailman, is rooted in their contrasting personalities and comedic rivalry. Newman, portrayed as a scheming and gluttonous character, often disrupts Jerry's life with his antics and manipulations. Their interactions are filled with humor and tension, highlighting Jerry's frustration with Newman's persistent presence and annoying behavior. This dynamic adds a comedic layer to the show, emphasizing the classic "frenemies" trope.