Not really sure it was a lie. That's a pretty loaded accusation for what may be a more internalized, unforeseen reaction to your disclosures. Sometimes we react in unexpected ways to things and we simply didn't/couldn't foresee that we'd have that response. That doesn't mean when we initially said something we were lying. It may just be more (to speak in therapy terms) of a countertransference response, and perhaps she wasn't even really aware of it.