We’ve all been there. You have been dating someone for a few weeks, they seem perfect and then they’re rude to a waitress or trash-talk their ex. Don’t ignore red flags. “Red flags are important, because they mean you should step back from that relationship,” says Kenny. “Maybe you hate it when people raise their voice, then they shout at you – but you find them so attractive, you ignore it. ” Besides, anyone who is rude to a waitress is definitely not worth your time.