No, my T has never said that to me, specifically. I used to work in speech and language development and it sounds like your T may be trying to learn how your words and body language (including microexpressions) make up what you want her to hear. The last time my brother and his wife were with me, I had to pay close attention to 'how' they communicated with one another to understand what they were saying to each other. If I'd just listened to their words and my eyes had been closed, I would have been confused about how their conversation made any sense.

This may not make much sense, as I don't think I explained that well. Sounds to me like your T just wanted you to know that she/he is working on understanding 'how' to hear your words/body language/facial expressions. If you didn't think s/he was being unkind, I would interpret it as your T's way of telling you she's trying to hear what you want her to know; just a declarative statement to let you know she's working on it.