He lost his job at a public office although he didn't made any particular blunder, and his pride couldn't allow him to ask his former superior for reinstatement and left him in agony.
とくに何かをしくじったわけでもないが役所を免職になってしまい、プライドの高さゆえに上司に頼み込んで復職願いを出すことができずに苦悶する。