Former "American Idol" runner-up, Katharine McPhee just can't seem to separate business with pleasure.

The 30-year old singer-actress has been caught again snuggling and showing public displays of affection with another co-worker. Photographers caught her snuggling and kissing her "Scorpion" leading man, 31-year old Elyes Gabel. Fortunately this time, the man she was caught with isn't married.

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Gabel starred in "Game of Thrones" as Dothraki Rakharo.

Their new series, "Scorpion" is an upcoming drama series which is based on the life of IT genius Walter O'Brien, who recruits geniuses in an effort to solve the world's problems.

Before Gabel, McPhee was photographed in 2013 smooching in a studio parking lot with her "Smash" director, Michael Morris. She was still married then to Nick Cokas, while Morris was still married to actress Mary McCormack.

McPhee claimed that she and Cokas were separated during the time she developed an on-set affair with Morris. Cokas, on the other hand, claimed that they only separated after he learned about the affair.

McPhee's claim that she didn't cheat is nulled by the fact that Morris was still clearly married to McCormack when they developed a relationship.

The singer and Cokas tried to reconcile last March, but had decided that the marriage was truly over and filed for divorce in May.

Unlike McPhee and Cokas, McCormack and Morris decided to save their marriage. The couple has three daughters together.

Aside from her marital issues, McPhee admitted that she has also struggled with eating disorders, becoming bulimic at the age of 17. After seven years of struggling with her weight and making it to "American Idol", the singer finally decided to join an eating disorder rehab program for three months.

Part of her treatment included eating just the right amount without abstaining from the food she likes. " I eat whatever I crave - I'm just really careful about portions," she shared.

TagsKatharine McPhee, co-worker, American Idol, runner up, Elyes Gabel