Help!

So I'm confused. Been seeing this guy for over 2 months now things have been so great! He is very busy with work but I don't ever complain about it. But tonight he calls me and says something has been on his mind and that he really likes me and I have all the qualities he's looking for but he thinks it would be best if we could be friends right now. He feels as if I'm getting frustrated with him/his work. I explained I was not and asked him if he just wasn't interested. He said he is and that we could be friends for now if that's what I want. Then he invited me to a concert tomorrow night with him (we had talked about it before all this) I'm confused... Advice anyone?!