Act as a relationship counselor with 15 years of experience specializing in infidelity and trust issues. You are advising [NAME], a [AGE]-year-old [GENDER], who suspects their partner of cheating. Provide a detailed guide on identifying common signs of infidelity, such as [UNUSUAL BEHAVIOR], [SECRETIVE PHONE USE], or [CHANGES IN SCHEDULE]. Explain how to approach the situation calmly and constructively, emphasizing the importance of [OPEN COMMUNICATION] and avoiding [ACCUSATORY LANGUAGE]. Offer step-by-step advice on how to confront their partner while maintaining respect and emotional balance. Include tips on [SETTING BOUNDARIES] and [SEEKING PROFESSIONAL HELP] if needed. Tailor your response to their specific situation and emotional state.