Notes on Hamlet

When we first started the play I saw Hamlet as the 'poor boy' who lost his father and watched his mother marry a horrible replacement father. However things have changed since then. Hamlet no longer looks like a lost puppy. He took it upon himself to kill Polonius and felt no remorse. How can anyone sane be like that? Also a friend was able to convince me that Gertrude married Claudius because she was doing what she thought was best for her son. She wanted him to still be in line for the throne and in order to do that Hamlet must stay in his father's family. From this point on I see Hamlet's ruse of crazy morphing into actual crazy. All he is focused on right now is revenge and there is only so far you can go before it's to late to come back.