Even though, it seems the causes of this confusion are appearance and reality as Viola is disguised as a man. Viola says to Olivia when Olivia hints of her love for Viola ‘I am not what I am.’ Then, when Sebastian suddenly appears the chaos begins as everyone confuses Viola and Sebastian. Sir Toby who thinks Sebastian is Viola attacks him. Then Olivia invites Sebastian to marry her and Sebastian has no idea what is happening so he thinks he must be mad or in a dream, but then he realises he isn’t. He then thinks that Olivia might be ...