Two And A Half Men creator Chuck Lorre and girlfriend, Canadian actress Emmanuelle Vaugier, have reportedly split.
According to Radar Online, the pair broke up just before Christmas when Vaugier learnt that Lorre, 59, was having an affair.
"She was away for a month working in Vancouver, and heard from a friend that Chuck had been spotted out with another woman," a source told the gossip website.
"She confronted him about it when she got back, and he eventually admitted to it. She's hurt, devastated. She never saw it coming."
Lorre, who also created popular sitcoms The Big Bang Theory, Dharma and Greg and Roseanne, was previously married to former Playboy Playmate Karen Witter.