This is a very tricky question. First, the behavior of the department manager may be suspected of discrimination, which is a violation of the law and company policy. Therefore, measures need to be taken to ensure that Xiaohong's rights are protected. The following is a possible suggestion: 1. **Communicate with the department manager**: Xiaohong or the HR department should communicate with the department manager privately to express concerns about the recent behavior, emphasize the seriousness of discrimination and the relevant provisions of company policy. The department manager should be clearly informed that any discriminatory behavior based on sexual orientation is unacceptable. 2. **Collect evidence**: If the behavior of the department manager continues, Xiaohong or the HR department should collect relevant evidence, including emails, meeting minutes or other relevant documents to prove the existence of discrimination. 3. **Report to the HR department or senior management**: If the department manager refuses to correct his or her behavior, Xiaohong or the HR department should report the matter to the HR department or senior management. The company should investigate this and take appropriate measures to ensure that Xiaohong's rights are protected. 4. **Provide support**: The company should provide Xiaohong with necessary support, including psychological counseling or other resources, to help her through this difficult time. 5. **Conduct department training**: The company may need to conduct department training to emphasize the seriousness of discrimination and the relevant provisions of company policies to ensure that all employees understand their rights and responsibilities. At the same time, Xiaohong is also advised to consider the following steps: 1. **Record the incident**: Record all relevant incidents, including the date, time, location, and people involved, to facilitate subsequent investigation and handling. 2. **Seek support**: Seek support from colleagues, friends, or family to get through this difficult time. 3. **Contact the Human Resources Department**: If the department head's behavior continues, Xiaohong should contact the Human Resources Department for help and support. 4. **Consider complaining**: If the company does not take appropriate measures, Xiaohong may need to consider complaining to the relevant department or agency to protect her rights.