Ben Affleck is reported to have changed his cellphone number in a desperate attempt to avoid former nanny Christine Ouzounian.

Rumors have circulated for weeks now that Affleck and Ouzounian were romantically involved while she served as nanny to the three young children he has with now estranged wife Jennifer Garner. Though Affleck has vehemently denied the affair rumors, he and Garner recently announced they are ending their 10-year marriage.

Since then, Ouzounian has made no secret of her hope of a longtime relationship with the Academy Award winner actor.

"She is in for a rude surprise," a source told Radar Online. "Christine had been calling Ben's cell phone a lot after he came back to Los Angeles. But Ben made it obvious to Christine that he had no interest in a relationship."

Still, reports are Ouzounian refused to take the hint, forcing Affleck to take even more drastic actions.

"Ben changed his cell phone number to get Christine off his back," the source continued.

Adding to all Affleck's angst are reports Ouzounian was also considering a plunge into the world of reality TV to have more of her story heard.

"The word in LA is that Christine is looking for an agent and wants a TV deal, on something like 'The Bachelorette' or 'Dancing With the Stars,'" a source told The New York Post.

"She knows she most likely can't go back to nannying," a source added. "So she's going to use the spotlight to build a showbiz career."

And now word is Affleck is fuming over allowing himself to get close to Ouzounian in any way.

"Ben can't believe how stupid he had been to ever get linked to her," said the source. "She looks like such an opportunist."