Remember folks, if you don't think you're good enough, some other guy will. Chances are, the guy will be less attractive than you too!
We have no idea what characteristics male strangers have that attracted their women. A man might have a dumpy body but boss people around for a living, come from a rich family, be rich himself, be talented, be popular, be capable of hurting other men, be a daredevil, be interesting, etc, etc. Shet like, “I cannot believe this schlub has an attractive woman,” and, “Heehee, she’s definitely cheating on him,” are expressions of envy and ill will (I don’t mean you, but for men who say such).