1. Changes in behavior patterns: sudden and frequent overtime, business trips, or late returns, with unclear or impatient explanations of the itinerary. Changes in mobile phone usage habits, such as frequent checking, password protection, and even avoiding answering calls or replying to messages when interacting with you.
2. Decreased physical intimacy: Physical contact between couples, such as hugs, kisses, etc., becomes cold, making excuses to avoid or appearing perfunctory. There may also be a decrease in interest in sex or a lack of attention during sexual activity.
3. Emotional instability and defensive enhancement: With large emotional fluctuations, it is easy to get angry or become unusually silent over trivial matters. When facing your inquiries or doubts, show a strong defensive attitude and even accuse you of being unreasonable.