What is male coworker ignores me?

As an AI language model, I do not have any information about a specific male coworker who ignores you. However, in general, ignoring someone in the workplace may be a sign of a strained or damaged working relationship. This behavior may stem from a variety of underlying reasons, such as personal differences, perceived slights or misunderstandings, or a lack of communication or respect. It is important to address this behavior professionally and respectfully, seeking to understand the underlying cause and working collaboratively to find a resolution. If the behavior persists and interferes with your ability to work effectively, it may be necessary to involve a manager or human resources representative.