
From the spoilers I read both the MLs are crazy just on different levels. One treats her as a substitute for his lost love but eventually differentiate between the two. The other kidnapped her, abused, locked her up and eventually tries to murder her. How can anyone say the Prince is better when he is the worst of the two.
So maybe the peeping Tom is actually a peeping Tia and is jealous of anyone close to the Prince.
That whole can't sleep come sleep with me scene reminded me of Hana Kimi.