I didn't understand everything during Mika's live performance. But, come back to me if I'm wrong, I think many of us have understood the general idea of the clip, namely that you shouldn't try to decipher every detail. He didn't give us a psycho exercise to interpret...
I find it very clever on his part to leave everyone the interpretation that suits him; for two reasons... The first is that while he gives himself up to us, he keeps a part of mystery. The second, and I think it's very strong of him, he doesn't fall into the trap of the sibyllin. What I mean by that is that he doesn't play it like some authors who make sibyllin just for the pleasure of doing it while explaining to you that their text is nevertheless clear and that if you don't understand it, it comes from you... Congratulations Mika for coming up with this fabulous result so that finally each of your fans can appropriate this song as a little piece of their own story.