Then to the extent she is defaming you in your role as a bartender it might also be considered defamation against the business, too. One thing that might work is if you and/or the bar owner(s) get an attorney to send her a letter that points out to her that she’s engaging in defamation and stating that she may be sued for damages over it. A well written letter from a lawyer can sometimes scare the recipient enough to stop engaging in the defamatory comments. It doesn’t always work of course, but it might be worth a try.

