How Should I Respond to Emails from a Known Hacker?

I determined through investigation that someone who is sending me friendly emails pretending she wants to help me with my sites misused my cpanel and wordpress passwords I gave to her to set up a site. The person is in a third world country. Should I not respond to her emails or pretend I don’t know she is a hacker and just respond that I am not interested in her offers of further assistance with my sites. I have reason to believe this person is very technologically sophisticated. Last thing I want to do is piss her off.