Jo Se Ho was forced to apologize to Cao Lu by commenting on her social media, "Lulu, I'm sorry."
Apparently, Jo Se Ho had forgotten several key moments in Cao Lu's life, specifically her parents' wedding. She had written to him, "Now that I think about it, you didn't come to my parents' wedding. You're too much. I feel so upset. How can you not even attend your own wife's parents' wedding?"
Looks like Jo Se Ho's got more explaining to do...poor guy. What a good sport, though!