It's not always easy to tell if your partner is cheating on you. Sometimes there are clear signs, like finding lipstick on their shirt collar or catching them in lies about their whereabouts. Other times, the signs can be more subtle. If you're suspicious that your partner may be cheating, pay attention to changes in their behavior, attitude, and appearance. They may start working longer hours, dressing differently, or acting more distant. If you notice any of these changes, it's important to talk to your partner about what's going on.