Why don’t people like me?

So I went bowling with a friend of mine. She’s always been really attractive, and even when I was thin people always asked me “Hey, is your friend seeing anyone? Could you set me up with her?” No one ever asks me out. So when we went bowling, I recognized the person at the counter. He had been in one of my classes last semester. He came over to check on us a couple of times. My friend called me later to tell me that she thought he liked me because he walked away when he saw I was taking a phone call and looked disappointed. Well, today he added me on Facebook and messaged me asking for my best friend’s number. I’m so pissed off. I don’t even really care if the guy likes me or not, I’m just pissed that my friend gets everything. I’ve never been asked out in my life, and she gets hit on everywhere she goes. Why are guys so shallow?