Even though Douma is fictional, he can still feel how much you love him. He starts wishing he could talk to you, & be with you, but he can't. He's slowly starting to call in love with you. He wants you to not be lonely anymore, so he sang a song for you, wishing you could somehow hear it. He's forgotten about Shinobu, & thinks about you all the time. He hopes that one day, you & him can meet, somehow "~Our fingers dancing when they meet... You seem so lonely, I'll be the only dream you seek~"