one of my friends, he fell for 365 guys at the same time... is it wrong?

Dear friend, thank you for reaching out with your concern for your friend. It can be challenging to see someone we care about going through a difficult time. From a Buddhist perspective, there is no right or wrong when it comes to matters of the heart. Buddhism teaches us to practice compassion and non-judgment towards ourselves and others. It is important to remember that everyone has their own unique journey, and what may work for one person may not work for another. From a psychological perspective, it is possible that your friend may be experiencing what is known as limerence, which is a state of intense infatuation and obsession with another person. This can be a challenging experience, and it may be helpful for your friend to seek support from a mental health professional. It is important to approach the situation with kindness and understanding, as your friend may be feeling overwhelmed and vulnerable. In terms of coaching advice, it may be helpful to encourage your friend to explore their feelings and identify what they are looking for in a relationship. It may also be helpful to encourage your friend to practice self-care and focus on activities that bring them joy and fulfillment. Finally, it may be helpful to remind your friend that they are not alone, and that there is support available to them.