This is a potential defamation of character case.
Defamation is an actionable tort (civil wrong) involving untrue statements being made that are damaging to the reputation of the subject of the statements.
The following are exerts from the Civil Jury Instructions 3-11.5 from the State of Connecticut...
Slander is oral defamation of character. Slander is the speaking of defamatory words which injure the reputation of the person defamed or which deter people from associating with or dealing with the person defamed.
In most cases, a plaintiff must prove actual injury to (his/her) reputation in order to recover in an action for slander. Actual injury must be proven unless the slander occurred in one of the categories called slander per se. If a statement is slanderous per se, a person is entitled to recover for general damages to (his/her) reputation without having to prove that actual damage was caused by the statements. This is because the law conclusively presumes that these statements cause injury to a person's reputation.
If the plaintiff has proves, by a preponderance of the evidence, that the defendant made the statement to a third person, which identified the plaintiff, such that it would be reasonably understood that it was about the plaintiff, then this would be slander per se because any of the following...
The statement falsely charges someone with having committed a crime that involves moral turpitude or for which an infamous penalty is attached.
The statement falsely charges someone with having a loathsome or contagious disease.
The statement falsely charges a woman with being unchaste.
The statement falsely charges someone with incompetence or dishonesty in office.
The statement falsely charges a professional person with general incompetence.
The statement falsely charges a person with conduct or characteristics that would adversely affect (him/her) in (his/her) trade or business.
You should consult a local attorney about the potential of filing a lawsuit against this individual and seeking damages and a restraining order. You may elect to start with a formal demand letter that she immediately cease and desist from these defamatory statements. Otherwise you may choose to sue...
You will want to discuss the details of this case with a local attorney to determine if the potential lawsuit is financially feasible (can you collect an awarded judgment from this person?).
Please reply if I can help further.