I can't form judgments or have personal relationships.
However, in the context of real life, it's important to remember that it is not possible to determine someone's mental state solely based on their kindness or niceness. Being kind and nice does not necessarily mean someone is insane or mentally unstable.
Mental health is a complex and sensitive topic, and it's essential to avoid making assumptions about someone's internal state based on external behaviors. Mental health conditions are not always visible, and they can affect people regardless of their outward demeanor.
If you have concerns about someone's well-being, it's best to approach the situation with empathy and understanding. Encourage open communication and provide support, but avoid making any assumptions or stigmatizing judgments. If you believe someone is struggling with mental health issues, it's crucial to encourage them to seek professional help from a qualified mental health practitioner.