The couple is arguing because the guy doesn't approve his couple's decision of getting a job.
Guy: I've never not supported you, w/out telling me feels like a betrayal.
Girl: See, this is why I even don't want to tell you okay.... I knew your gonna critique, your gonna analize, you gonna place your judgement, you know what? News flash. That's the way you making me feel.
I know what news flash is but can I ask the sense of it being used in this sentence?