Things Got Weird: Ben Affleck And Jennifer Garner Like 'Awkward Strangers' At His Birthday Bash -- Nanny Shame To Blame?

Ben Affleck celebrated his birthday yesterday, and what better way to ring in his 43rd year than with a full day of avoiding eye contact with Jennifer Garner, the scorned mother of his three children?

Affleck and Garner took their children, Violet, 9, Seraphina, 6, and Samuel, 3 for a jam-packed day at The Wizarding World of Harry Potter at Universal Orlando Studios. But according to an onlooker, the estranged couple did not seem to be enjoying themselves. "Neither of them looked too happy," the source told People. "They didn't even look at each other. They were talking to the kids, but they didn't talk or even look in each other's direction," the source said. "They seemed like strangers – awkward strangers."

As RadarOnline.com has reported, it has been a rough road for the celebrity couple leading up to their divorce announcement this summer, but things grew exponentially more awkward between the pair after the recent revelation of Affleck's alleged affair with the nanny, Christine Ouzounian. Despite Garner's pleas that Ouzounian keep a low profile in the wake of the scandal, the ex-babysitter seemed to revel in the attention, smiling for paparazzi, and claiming to have intimate photos of Affleck.