"Nothing." he said simply, annoyed at himself for letting those words slip, he surely didn't want to whine, mostly not in front of Lupin, his insecurities were his own business.
"You are unaware of the effect you have on people then... maybe you never knew warewolf have quite a different aura." Or maybe it was just Severus, able to detect the darkness.
He sighed when he realized Lupin wasn't leaving, why? "I believe you should be in bed now, Lupin..."