What does Erin tell Drewe about her plan of action? How does Drewe react?

After Patrick beats Erin up, she tells Drewe that she has a plan of action that will be difficult for people at first, but is necessary in the long run. Because Drewe does not know the secret her sister and Harper are keeping, she mistakenly takes this comment to mean that Erin is going to hurt herself. She immediately calls Harper and tells him to go check on Erin in Jackson so she does not kill herself.