Dear child, all motion is only *perceived* as relative. Humans detect motion based upon a perception that compares one to another.
But perception is not reality. Contrary to your repeated claims, the Sun does not actually orbit around the Earth, regardless of your perception.
It might help to point out that when you have access to more than one point of reference, as we have since Galileo (who was forced to recant the truth under pain of death by "Christians"), any ambiguity regarding reference points goes out the window... Plus, that's not really what Einstein was talking about :-P.
We can tell the Sun doesn't revolve around the Earth, because if it did, it would be impossible to explain the movement of the other planets, and our changing orientations with the stars throughout the year.