What is why is she mean to me but nice to everyone else?

When someone is mean to you but nice to others, it can be confusing and hurtful. There could be several reasons for this behavior:

1. Personal Issues: They might have unresolved issues or feelings towards you. It could be based on past interactions, misunderstandings, or perceptions they have about you.

2. Jealousy or Insecurity: Sometimes, people act mean because they feel threatened or insecure. This could stem from personal jealousy or feeling inferior in comparison to you.

3. Projection: They might be projecting their own personal struggles or negative feelings onto you as a way of coping with their issues.

4. Miscommunication: There could be a lack of clear communication between the two of you, leading to misunderstandings. They might not be aware of how their actions affect you.

5. Social Dynamics: In group settings, people sometimes alter their behavior to fit in or gain approval from others, which can lead to being selectively nice.

6. Lack of Self-awareness: They might not realize they're being mean to you. Sometimes people are unaware of their behavior or its impact unless it's pointed out to them.

7. Testing Boundaries: Some people test boundaries to see how others react. Consistent kindness to others and not to you could be a way of testing your reaction to their behavior.

To address this issue, you could consider having an open conversation with the person to express how their behavior makes you feel. It's important to approach the situation calmly and without accusations, focusing instead on how their actions affect you. Sometimes, discussing issues directly can lead to improved understanding and relationship dynamics. If the behavior continues and affects your well-being, it might be helpful to seek advice from a trusted friend, mentor, or professional.