Flirting with others while in a relationship is a form of cheating. Meeting up with someone secretly and concealing it from your partner is cheating. Engaging in conversations, messaging, or texting others without your partner's knowledge is cheating. The moment you start hiding conversations, deleting messages, or using 'Do Not Disturb' to conceal your interactions, it's cheating. It's important to recognize that cheating isn't just a physical act. Disrespect and betrayal often begin in the mind before they manifest in physical actions.