Why did he suddenly not like her?
I don't get it. His loser exgirlfriend puts on this skit that does nothing but read their emails out loud and identify Sam as Princetongirl. There were no earth shattering revelations about her, and suddenly Austin gives up completely on his 'Cinderella'. All this skit did was identify her and show what a bitchface his ex is.
I could see him reacting like he did if, say, it turned out Princetongirl was a man, but it was nothing like that.
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You're making me--- you're making my stomach sick.