Jennifer Aniston and John Mayer had been secretly dating for three months prior to going public?

According to the NY Post Page Six column, John Mayer and Jennifer Aniston had actually been secretly dating for three months prior to going public. Jen and John sort of went public earlier this month being seen together in Miami, but a source said they have been dating for 3 month prior to their coming out:

“They’d been keeping it under wraps and hiding out together on their dates. Then Jen realized it wasn’t just a fling and decided to take it public.”

I am kind of finding it hard to believe they have been dating for 4 months, that’s an eternity in Hollywood time and very difficult to keep a secret going for the 3 months prior. On the other hand it seemed odd that Aniston was so public with her affection for Mayer so fast, so I do believe they were dating before the “coming out party”, but not 3 months prior.