Joanna never wore such expensive dresses before. Now that she's with a rich guy, things have really changed." Seeing the way David looked at Joanna made Annie feel a hint of danger.
Even after meeting that mysterious and prominent man, she wasn't as keen on David. However, she still needed to secure David's side before successfully hooking up with the other man.
Just in case.
What's more, securing David meant that she could still marry into the Benington family and become Ms. Joanna.
Annie was well aware of this.
She wouldn't let herself face the terrible outcome of having nothing to show for her efforts on both fronts.
Moreover, her pride couldn't bear seeing her subordinate look at another woman with such infatuated eyes.
And that woman happened to be David's ex-girlfriend!
Annie's casual remark successfully made David's face change in an instant.