Matthew Perry does a good job of keeping his personal life under wraps.He does such a good job, in fact, that he managed to end a long-term relationship with Masters of Sex star Lizzy Caplan without anyone finding out.fans -- Matthew Perry and Courteney Cox aren’t dating.Despite reports that Monica and Chandler started hooking up in real life after Cox split from fiance Johnny Mc Daid earlier this month, a source close to the former co-stars says the rumor is “untrue.”WATCH: Courteney Cox and Johnny Mc Daid Call Off Engagement Earlier this month, a source confirmed to ET that Cox and Mc Daid had called off their year-and-a-half engagement, but our Mondler-shipping hearts will have to stick to Netflix binges to see these two together.PHOTOS: Celebrity rehab centers He recently turned his Malibu beach house into a sober living facility called Perry House, for men who need help transitioning from rehab to the real world. (Perry himself has a history of drug and alcohol problems.) "The thing that I'm most proud of in my life," he told ABC News earlier this year, "is that if a stranger came up to me and said, ' I can't stop drinking. "I'm close with people who are far more famous, and they know how to avoid attention." PHOTOS: More celeb splits That doesn't mean she's hiding, though.The actress, who has also appeared on was canceled last spring after just one season, the 44-year-old actor isn't sitting idly by.
"It happened a year and a half ago," the insider said.Unfortunately, there aren't any Harry and Pippa–level details about their rendezvous, but we will indulge in the fantasy, regardless, and just project our own:invite Jennifer Aniston to their wedding because she didn't invite Matthew to hers and Justin Theroux's this past summer?Or is that totally awk because Courteney and Jennifer are maid-of-honor-level besties in real life?"They haven't been together for a long time." The "Masters of Sex" starlet, 31, recently spoke about staying under the radar in Hollywood in an interview with U.K.'s Independent, but refused to talk about Perry directly.