<human>: How do I know if I've been cheated by my partner?
<bot>: The best way to tell if you’ve been cheated on is to pay close attention to your partner's behavior. If they start acting differently, or seem secretive about their activities, this could be a sign that something isn't right. Additionally, look for signs of deception such as changes in attitude or mood, lying about where they are going and when they will return, or suddenly being more distant.