That's not something most people are comfortable with, but it is something that everyone can feel. Not only can you feel lonely by yourself, but you can feel lonely even when you're surrounded by 100 people. Now, I'm sure you're thinking, "Tell me something I don't know," but the reality is, we don't know. As humans, we yearn for interaction and affection form other human beings, but more often than not, we don't know how to cope with a lack of the aforementioned. And when we are feeling lonely and like nobody cares, look at that for what it is... a blessing.
Loneliness is a blessing in many ways, but one that stands out to me, is that it teaches us how to hangout with ourselves. We learn how to do things on our own, and more importantly, how to have fun on our own! Seeing a movie... alone; going out to eat... alone; going shopping... ALONE. These are all things that can you can do on your own and have a blast while doing it! It teaches us to love ourselves for who we are and we gain more self-confidence.
Being alone is also fun because you don't have to deal with people, and let's face it... people suck. When you're alone, you don't have to worry about what other people want. If you want to go see that weird new Indie film, go for it! Or maybe you want to go try that greasy-spoon of a restaurant, why not! Who's holding you back? Being alone is freeing and allows your soul to grow in ways that it never could if you were constantly surrounded by people who are projecting themselves onto you.
Even when you are feeling alone, chances are, somebody out there cares about you and wants to see you happy. And when you are feeling lonely, take that and use it to your advantage to better yourself and strengthen your soul.