Can you ever be friends with someone you love?

When I was about 16 years old, I started dating this guy. It ended as most relationships at that age do, and after awhile we lost touch with one another. 5 years pass, and one day I find that he has tracked me down on facebook, we exchange a few emails, and he begins telling me how he has spent the last 5 years of his life wanting to be with me, comparing girlfriends to me.How he always remembered how happy I made him. How he wanted to grow old, and gray with me. This goes on for about 2 months, (currently I am living a few states away.) Finally I decide to fly down to see him, and I could instantly tell that something was not right from the momment he picked me up, but just thought he was nervous, so continued on. He later ends up telling me that hes just not ready for a relationship, that he just got out of one, and thought it was what he wanted, but as soon as he saw me it was a big jolt of reality to him, but he didnt want to loose me out of his life again, and wanted to remain friends. This was 2 months ago. He has since posted on his facebook page pictures of him, and his new girlfriend.who is a lot younger than him, and has a child. he lied to me when I asked him about her, he said they we’re just friends. but when he found out I was moving back home, then he decided to come clean and, according to him, he wasn’t looking for a girlfriend, it just sorta happend. Now we are trying to be friends, but its like he, and I have swapped places. Now I’ m the one thinking about him. hes been trying to call me for the last few days, to talk about all this. I just don’t know what to say to him. I’ m pissed off, but at the same time I want to have him in my life. Am I an idiot? can you really be friends with someone you love? How could he have said the things that he did to me, and then just have it all go away?