Korean actor Song Seung Heon and Chinese actress Liu Yifei's love story set hearts aflutter when they fell in love after filming The Third Way of Love together last year.
However, according to Asian E-News Portal, the two have been rumoured to be having a relationship crisis.
Both have failed to turn up to face the media at the movie premiere in Korea recently.
The movie company said that Yifei was absent due to her work schedule and netizens said:
"There is one type of love calling me as promotion period."
She was last seen at a Chinese airport before jetting off for the Cannes film festival.