Former Desperate Housewives star Nicollette Sheridan spotted her ex-husband Aaron Phypers' car parked near her home recently in her gated community in Hidden Hills, CA, a source tells In Touch. The two had a nasty divorce, so it would not have been a welcome visit.

But it turns out he was there because he's dating her neighbor, Denise Richards. "Nicollette thought he had gotten past the security gates," a source tells In Touch. "She was so embarrassed to learn he's dating Denise."

nicollette sheridan

Aaron, who was only married to Nicollette, 54, from December 2015 to June 2016 before they split, has been dating Denise, 47, since late last year. "Nicollette can't believe her luck. It's her worst nightmare, seeing him strolling around her neighborhood."