So, just so I can explain the last chapter, Robin made a wish, and it came true. He wished for a second chance with Starfire, and he got it. So, basically, it was all a dream (corny, I know!) but it was a lesson that Robin needed to learn, which was appreciate the people you love before it is too late. Dreams can come true, you just have to make them.
(Sorry, little cheesy, but hey… I'm a writer )