Solitude.
The quality or state of being alone or remote from society.Learn to enjoy solitude. If you feel uncomfortable being alone, then it is time to become acquinted with yourself. You can learn about yourself in the same way you learn about others, by asking questions. Take some quiet time regularly to enjoy, become friends with, and understand yourself. This is the beginning of self-love, so necessary if you are to feel comfortable with others. Often in life you will need to call upon your best friend for help, that best friend should be you.
"Solitude is the place of purification."
Martin Buber