All Bite and No Bark

Cassidy doesn't really want to give a damn at this point.

After seeing Adrian kissing Sophie or probably vice versa - she doesn't care anymore, she feels like bursting out in exasperation. She admits that she is enraged despite the reaction she decided to show earlier.

However, that is not really because she feels jealous or anything. Again, she reminds herself that she doesn't have that kind of relationship with her husband.

What gets her exasperated is the fact that Adrian has been doing all those romantic gestures and possessive advances towards her while in reality, he actually has this Sophie to play secret lovers with him all along. 

'How infuriating... Despite what I said to blondie, I really do feel dumb,' Cassidy grimaced in aggravation.

The reason why she chose to be apathetic about it was because she honestly could not take any more of their bullshits.