Jennifer Lopez and Diddy Still Sweet for Each Other At AMA After-Party

Jennifer Lopez and Diddy flashed back to the turn of the Millennium.

When he was Puff Daddy and she was not Jenny from the Block yet — and partied after the AMAs as if they were still dating.

Clearly there are no hard feelings between the exes who looked like they had a blast at J Lo’s after-party. More on TMZ...