Back in November, top stars Jang Dong Gun and Ko So Young revealed their relationship and that they were together for more than two years. Jang Dong Gun also recently revealed that he's scheduled to have surgery on his knee but before that happens it seems he wants to take some time to relax with Ko So Young. The couple was recently spotted at the World's #1 Rated airport, Incheon International. The destination is unknown except for the the fact that they went to America. The Korean media in the meanwhile and speculating that they're getting away to get hitched. The most likely destination for the duo is Hawaii as most people would like to go to a warm place to escape the cold Korean winters. Thanks to marrin for the tip.