Know who you are and what you meant and help her understand. You have emailed her back, explaining again and that's all you have to do. It's now her move and she may make it now or at session, whenever it is good for her. I imagine your T wants to understand and will keep asking questions until she is sure she does. She was not accusing you of lying, only asking the question as whatever she misunderstood came across to her, that way. She is the one who has it wrong, not you! She is in charge of her understanding, getting it straight for herself.