I think it was an arranged marriage by their families. They both come from big fams. She also might have agreed because he hot. Then the brother got in the way by hypnotizing her.
Ohhh! Thaf actually makes sense
I mean we all agree hubby is more handsome than OG ML. Unless she doesnt have eyes or they had some kind of relationship previously I don't understand why she would choose the OG ML over hubby. Unless sorcery
SAUR TRUEEE!
I wonder how og Cong Rong and ML ended up getting married