I think this song is about two very good friends and she has fallen very deeply in love with him. I think when he sees her he sees himself. I think he doesn't necessarily like himself that much, and he has tried the best he could to reciprocate her love. When he tells her he has loved her beautifully, I think he is trying to tell her that he has loved her the best he can. She knows it is not enough, but she is drawn to him anyway.
I think this song is about two very good friends and she has fallen very deeply in love with him. I think when he sees her he sees himself. I think he doesn't necessarily like himself that much, and he has tried the best he could to reciprocate her love. When he tells her he has loved her beautifully, I think he is trying to tell her that he has loved her the best he can. She knows it is not enough, but she is drawn to him anyway.