My sympathy is with her. I can't imagine how traumatic all of this is for her, most especially knowing she was sexting with RH as his baby was dying in that car, but also having to come testify at a trial in which her testimony will definitely result in prison time for that man, and will possibly help lock him away for life.
Given that, I would have hoped the State would have had the decency to get her on and off the stand as quickly as they could. Instead they kept her there for hours. No, I don't see any necessity in that. The questions they had to ask her could have been dispensed with in far shorter time.
Sorry, but imo she's just one more victim of the State's scorched earth prosecution of RH.