You're a happy medium on the loner scale. You enjoy socializing, but you also have your moods when you'd rather be alone. Social interaction is important for forming human bonds, getting support and affirming your own personal identity. (As Charles Augustin Sainte-Beauve said, "Tell me who admires and loves you, and I will tell you who you are.") But it's equally important to do things for yourself, have time to reflect and explore the world in your own way. In fact, doing things on your own makes you a stronger, more interesting person. Whether or not you consciously aspired to this state of harmony between independence and human bonding, you seem to have achieved it!
Bah!! I want a redo.