There's evidently a very passive-aggressive element in her personality. As an example, you could sense her glee at her mischievous and viscous plan to ambush Trump. Once this type of behavior is exposed, others will never trust you.
And yes, it appears that she is despised and that her colleagues at Fox are taking sides now. Its an ugly episode that Ms. Kelly has triggered and her penchant for intrigue will haunt her forever.