We are all alone when we're young, until the day we suddenly are not. Yes, we are a part of families, which is not being totally alone, but that doesn't offer the closeness we all desire at some point. Having that one person to touch, to share the warmth of body and mind with; THAT comes in life when times says, and not before.
When you're young, time can seem the enemy of all things. Feeling like that special something will never happen for you can be the hardest thing life has to offer.