I would advise against contacting HR. Regardless of the rules against this type of behavior. Completely understand the hurt you are going through but I do not believe it would be a good idea to cause trouble in her career.

Exposure is one thing, being vindictive is quite another. Be strong and be firm.

Married 10
Together 13
ILYB 1/4/2010
Separated: 1/4/2010
Moved back in 1/28/2010
Reconciled 3/14/2010