His music video, Mr Unbelievable, also went viral in 2015 and spawned a movie that same year.
After talking for another 5 minutes, Naomi continued to say no to him.
When contacted, Chen declined to be interviewed about his marriage.
Previous news reports had quoted him as saying that the couple met on Chinese social media platform Weibo.
While Mary-Kate still acts occasionally, her sister has quit.
They are now more focused on their fashion business.