Typically, WS believe that a BS's exposure was for revenge. To punish them.

She seems to understand that Gerk has a plan to win her back. "Your little plan didn't work" "so good luck with all your scheming and planning"

That to me seems very unusual.

It is also striking that after it was just pointed out that she did not tell him to stop writing her she does just that.

After it was just pointed out that she hasn't blocked him from her email, she threatens to.

I could be wrong. I hope I am.