Drastic times call for drastic measures.

According to a new report, Ben Affleck was forced to change his phone number because his former nanny/alleged mistress Christine Ouzonian wouldn’t leave him alone!

RELATED: Christine Ouzonian Was Offered HOW MUCH To Do Porn?!

“Christine had been calling Ben’s cell phone a lot after he came back to Los Angeles,” an insider tells Radar.

“But Ben made it obvious to Christine that he had no interest in a relationship.”

ben affleck nanny

Ben and Jen’s former nanny and rumored mistress, Christine.

The actor, 43, may have made it obvious — but the 28-year-old nanny wouldn't take no for an answer!

“She wasn’t taking the hint, so after the calls continued, Ben changed his cell phone number to get Christine off his back,” the insider explains.

RELATED: This Is Why Ben and Jen Will NEVER Get Back Together!

Ben is allegedly especially interested in cutting all ties with her after he learned she’s reportedly looking to book a gig on a reality show such as The Bachelorette or Dancing With the Stars.

christine ouzounian

Christine out and about in LA.

A source told Page Six, “She knows she most likely can’t go back to nannying — who in LA would hire her now to take care of their kids? So she’s going to use the spotlight to build a showbiz career.”