Lee Bo Young is not the jealous type and as an actress she knows not to take her husband's onscreen kisses too seriously. But her husband, actor Ji Sung, has such impressive onscreen chemistry with his "Secret Love" co-star Hwang Jung Eum that they will reunite. They will play lovers once again in the upcoming drama "Kill Me, Heal Me."

At a press conference for his upcoming drama Ji Sung said that his wife, currently expecting their first child, is not concerned about him acting in a romance with Hwang Jung Eum.

"She's not jealous at all. There's nothing like that," he said.

Lee Bo Young knows that pretending to be in love is part of their profession. She has shared k-drama kisses with several attractive actors, including Lee Jong Suk and Lee Sang Yoon.

And Hwang Jung Eum has dated her boyfriend Kim Yong Jun for nine years. The couple was paired during the second season of "We Got Married" and liked each other so much they continued to date.

Ji Sung described Hwang Jung Eum as a "good friend" that he met while filming "Secret Love."

"That friend was with me and helped me out," he said. "So last winter I didn't have a hard time and the drama set felt warm."

He wanted to work with Hwang again and would have liked to do a romantic comedy with her but then this opportunity came up. They also filmed a commercial together.

"When I think about each of our lives, I think she is a meaningful and precious partner of mine," he said. "It's hard to work together once but this will be the third time. Because I feel that way I will have no problem acting naturally and can focus well. I started this project with a good feeling. I don't know how many people will love and watch our drama but I will feel satisfied and accept whatever happens. I hope that I will continue to have the courage that I have now and finish the drama well."

In the drama he plays Cha Do Hyun, a man who suffers from dissociative identity disorder. Hwang Jung Eum plays his personal psychiatrist Oh Ri Jin.

Is Hwang Jung Eum's boyfriend jealous that she's in another onscreen romance with Ji Sung?

"I fought with him," she said at the press conference, but then admitted the fight was not about her onscreen romance but instead about his forgetting to make dinner reservations.

"I guess that's what it's like when you have dated someone for nine years," she said.