Most mysterious means most full of shxt , indirect with their words or feelings, scared to be themselves or open up, scared to say how they really feel, plays serious games with people, runs from situations instead of dealing with them, immature ways and manipulative
Scorpios are none of that
That would be Aquarius
There's nothing great about someone who's full of chit and thinks they're ooo so mysterious
I like people to be full on honest with me and no games. That person is a waste of time. And up to no good.
Just like aquarius always is behind your back