I think she is strong.Let's be a bit more realistic,in her era,she can't do much,she doesn't have any family to back her up in slightest.the only thing she has is her looks and stuff she learned at the duck's house about how to manage the house and whatnot.so,she found an opportunity that she can use her talent.l agree that the male lead is too good and kinda unrealistic but she accepted a loveless marriage in which she is at least being treated like a human.getting out of that abusing relationship for a person who has been struggling with it since childhood and making up your mind to never look back even though your ex that you always loved but never loved you back is now after you is admirable.
I was hoping to read a story with a strong female lead, but this story looks like it is going to focus on a love triangle and her depending on one of them. The ex-fiancé is a hypocrite, and the new fiancé is a cliché of contract marriage then falling in love.