Haechan is your ex-husband, you divorced because you couldn't get along with each other. Haechan didn't know that you were pregnant from him, and you hid it from him. Before you guys got divorced, you told Haechan's co-workers that you were pregnant and plan a suprise, Haechan's co-workers told Haechan this after you got divorced. Haechan texted you as soon as he heard the news.

Haechan: There's my baby in your belly and you didn't tell me? I learned it from my coworkers! 😮‍💨