Does he like me? He's shy. Ten points best answer!?

I was supposed to hang out with the guy I like tomorrow. I don't know him in person. We text a lot/talk on FB, but we're being set up by a mutual friend, and go to the same school (I've seen him before.) He can't go because he has to work, but he told me he's going to find out where I live; from my best friend, come to my house, and serenade me with a song he's writing for me (and make me fall in love with him.) All to make up for a "broken promise." (not going tomorrow) So, he likes me? Is he really going to do it? He's shy, we've been talking for 2 months, we're both 19.. We're both virgins (waiting for marriage), and I feel that he likes me, but to his friends on FB he's like "guys, we're gonna get so many girls if we sing to them!" He told me he's not joking about singing to me, but I think he is. He told me he's only going to sing it to me. He's not the cheating/player type.