In this case, you can:
Give yourself some time: Sometimes, we may need some time to deal with our emotions and thoughts. Don't rush to find a solution or try to force yourself to forget. Give yourself some time and space to get used to it and let go of this experience.
Communicate with your family and matchmaker: Although they may already know your situation, you can take the initiative to communicate with them and express your feelings and thoughts. Try to understand their positions and ideas and seek their support and understanding. At the same time, you can also ask them to help you deal with this problem to avoid further deterioration.
Respect the other person's decision: Although you may be emotionally troubled by this blind date, you need to respect his decision and feelings. Don't try to force him to associate with you or continue to send you messages. Doing so will only make him more disgusted and hate you.
Seek professional help: If you find that you can't handle this emotional distress, or it has affected your daily life and work, then you can consider seeking professional help. Psychologists or counselors can help you deal with this emotional problem and provide some practical suggestions and support.
Although it may be difficult to let go of someone, you need to respect the other person's decision and try to adapt. In this process, it is very important to keep a positive attitude and seek support.