Iz it wrong to think this way?

Iz it wrong to believe that you deserve no one?? When i see a girl I can't ever in a million years picture her and me together. If there are 4 billion people in the world, why would a woman want to be with me as opposed to any other dude?? What would make me better than someone else. Im not successful or rich or even remotely attractive(average at best) I can't imagine anyone ever having feelings for me.. I've never understood the concept of love at all. I dont know what it feels like to love or be loved. Seriously. I come from a family where affection and terms of endearment were nonexistent. I have been alone my whole life. I feel hollow and empty and even feel alone around friends. I don't know what to do.