The Secret Life of My Secretary Season 1 Episode 28
Jealousy & Confession
After the meeting, Jung Gal-Hee leaves her job and visits her sister's performance along with her brother. Meanwhile, Do Min-Ik regrets letting Gal-Hee go and plans on treating her to a meal. But seeing her with a man he can't recognize, he feels jealous and eventually tells her he loves her.