When Ben Affleck was spotted cradling a golden retriever puppy in Atlanta last week, hearts melted the world over. The puppy was cute, but a newly single Ben carrying the fluffy dog...decidedly cuter! Here was the perfect gentleman: a man who had given up his L.A. digs to move into an Atlanta guesthouse and lend an extra hand while the mother of his three children, Jennifer Garner, was busy shooting a movie. But now it seems as though his presence might have been simply practical as well because, if a source is correct, Jen had fired their nanny because she suspected Ben had a fling with her?a rumor first reported this week by Us Weekly, the start of a parade of nanny-themed headlines that have, er, dogged Ben since his heart-melting puppy pics popped up.