pkpk was crying last night and now her eyes are swelled up.  Tears are strange; you cry when you're happy and when you're sad.  This discussion of tears reveals a terrifying plot!
Nobody notices, but he's 
crying as he fights!
¡Nadie se da cuenta, pero está llorando mientras pelea!
Nadie lo ve, pero está llorando mientras pelea.
Ninguém percebe, mas ele
 está chorando enquanto luta!