The feeling you are describing, when you are neither happy nor sad and prefer to be alone, is often referred to as "apathy" or "indifference." Apathy is a state of emotional numbness or lack of interest in one's surroundings or activities. It can result in a lack of motivation, a disconnection from emotions, and a general feeling of not caring about things that would typically elicit an emotional response.
When someone is experiencing apathy, they may withdraw from social interactions and prefer solitude, as being alone allows them to avoid emotional engagement or further feelings of indifference. Apathy can be a symptom of various conditions, including depression, burnout, or certain neurological or psychological disorders.
It's essential to recognize that experiencing occasional apathy is a normal part of life and can happen to anyone during times of stress or emotional exhaustion. However, if apathy becomes persistent and significantly interferes with daily life or emotional well-being, it may be a sign of an underlying issue that needs attention.
If you or someone you know is consistently feeling apathetic or experiencing prolonged periods of emotional detachment, it's advisable to seek support from a mental health professional. They can help identify potential causes and provide appropriate guidance or treatment to address the underlying concerns.