She doesn't miss him. Not in the least. She doesn't even respect his memory. The lies she told during the trial about Travis sexually attracted to children is sickening and something she never could have even thought to do, let alone gone through with it, if she missed him or had any real feelings.
I keep watching the interrogation tapes and I find it so disgusting when she wants Flores to show her the pictures, she wanted to see her handy work, she wanted to get off on seeing his slaughtered body.
She doesn't miss him, she hates him.