Acclaimed novelist Sir Salman Rushdie faced a fatwah, so of course he was going to strike back at Page Six. Yesterday, the Post's gossip section quoted his ex Pia Glenn, who claimed Rushdie was still hung up on ex-wife Padma Lakshmi (well, who wouldn't be) and that he stole a year from Glenn's life. Today, Page Six offers Rushdie's version, which begins: "The reason I broke up with Pia Glenn is that I came to feel that she's an unstable person who carries around a large, radioactive bucket of stress wherever she goes. It was just exhausting to deal with."