In S1 Ep4 Lana lang saw Tina Greer transform

In S1 Ep4 Lana lang saw Tina Greer transform from Whitney to her real Self on the graveyard,before Tina burried Lana in a Grave.

How comes that Lana didn’t talk to anyone about it or even thaught that it was weird that someone literally transformed in front of her.