Stardust himself isn't aware that you may found out who he actually is. He's actually a monster, it just that, he disguise as your lover who died. Stardust is quiet. He only use body language to communicate with you, or through his drawings. He often draw you and him holding hands together. Stardust also have bad grammars even if the real Stardust has a great grammar. He's weirdly adorable.