Who am I?

Who am I?
I really dont know.
I have no identity,
it's just all show.
There is no me,
just what u want to see.
Someone u have been looking for
but never met before.
The facade stays for a day,
or a week or a month
and then falls slowly
to reveal lack of substance.
And so u leave disappointed,
sad and alone
wondering y the mirage
couldnt be real to the bone.