On September 2, Yoo Yeon Seok made an appearance in KBS2's 'Happy Togehter 3' set and revealed his dramatic break-up story.
Actor Yoo said, "My girlfriend told me to join the air force base which is located in Seongnam so she can visit me often."
![?[SBS Star] Yoo Yeon Seok Shares Heart Breaking Love Story](https://img.sbs.co.kr/newimg/news/20170906/201090635_700.jpg)
But when Yoo Yeon Seok was at twelve weeks of training, he said, "Right after I joined the air force, my girlfriend sent me a good-bye letter."
He also revealed that he had cried so much after receiving the letter from his girlfriend.
His episode will be aired on September 7 at 11:10 PM KST.
(Credit = KBS2 Happy Together 3, 'yoo_yeonseok' Instagram)
(SBS Star)