Is Jennifer Aniston back together with John Mayer

In a blog which is linked to John Mayer's Twitter, he replied as following
on the rumours that he is back to Jennifer Aniston.

He writes, "Let's break it down: I don't think I ever said "I believe in second chances!" but I can't be 100 percent sure, as it's possible I could have accidentally said something succinctly and to the point."

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