1. Clarify one's own situation and responsibilities: examine one's marital status, recall commitments and emotional foundations with their partner. Realizing the potential harm that developing special emotions towards another girl may cause to the existing family. Take responsibility as a married person and respect the sanctity of marriage.
2. Control emotions and maintain appropriate distance: Be aware of and control your emotions towards that girl, and avoid further deepening this inappropriate emotional connection. Reduce individual contact with her and maintain a normal distance between professions or friends. Shift attention and reduce longing for her through hobbies, sports, or other healthy activities.
3. Seek professional help and communication: If you find it difficult to handle this emotion, consider consulting a psychologist or marriage counselor for professional advice. Communicate your feelings openly with your partner, work together to find solutions to problems, and strengthen trust and understanding between husband and wife. When necessary, communicate openly and honestly with the girl, but make sure to express your position and decision clearly without harming anyone.