On December 11 episode of SBS talk show 'Because Lee Dong Wook Wants to Talk', Gong Yoo joined as a guest.

Gong Yoo laughed then gave an honest answer, "Yes, I have. I once texted her late at night asking her, 'Are you asleep?'"
The actor continued, "That wasn't the only time. It sounds really lame, but I texted her again the next day. I told her, 'I must have been too drunk last night.'"
He went on, "She never replied to any of my texts. I'm thankful that she didn't text me back though."

Lee Dong Wook continued, "It was a bit different for me. I just really wanted to send her a text hoping that she will be happy in her life. So, I texted her that."
He added, "We exchanged some texts, then ended there. We never talked after that day."
(Credit= SBS Because Lee Dong Wook Wants to Talk)
(SBS Star)