Heartbroken and Hopeless

So here I stand, or sit rather, heartbroken again. And severely hopeless. I know that one day i'll find someone. But that hope is running low. I once had a great relationship. That went down in flames. He got too close and I pushed him away. I had another great relationship. I was engaged. Yea that's right WAS engaged. I didn't tell anyone about it. It was going to be a surprise. That one ended about a month ago. Now I don't think I have hope left. I'm just so alone. Everyone tells me that i'm this great person and any guy would be so lucky to have me with them. So I don't get it. Why am I alone then? Maybe i'm not as great of a person as you all think I am. Hey maybe i'm a horrible person. Maybe no one will ever understand this pain that I have from being alone. I don't want to be alone anymore. My heart just got broken all over again.