Jenna believes that Migo, his husband, cheated on her. So she did That Mistake. She told to Migo that she's the one who cheated. She don't want to pity herself. That's why she did that Mistake.
He loved her though he cheated on her
His lust broke her apart
YN: how dare you cheat on me jungkook?
Jungkook: yn baby it's a mistake. She was just a distraction
YN: why did you do this to me and our son
Jungkook: she is pregnant with my child
What will happen when jungkook who loved his wife with all his heart start cheating on her.