They have worked together on the drama "Love Rain" (2012), which was a romantic drama set in two different time periods. Their roles as a young couple in the 1970s and their modern-day counterparts were well-received.
While they have a professional relationship and were close during the filming of "Love Rain," there is no evidence to suggest they are anything more than friends.
It is important to respect the privacy of individuals and avoid speculating about their relationships.