It's good to vent and share your frustrations - that's one of the many joys of the modern internet. Another such joy is online communities like this Stuttering forum. I went through something similar years ago and I would burn with rage inside when I interpreted a situation as 'being talked down to' because of my stutter. If your gut feeling was that she was lying, then trust it. If you want to believe that she was cured, then you can choose to believe that instead - from what I've experienced and continue to read/learn from others on this forum is that there are many 'sub-sets' of stutterers (some who stutter with strangers, others are good with strangers but not with family, some with more blocks vs. repetitions and some who have seen dramatic increases in their fluency over time). If she wasn't lying, she was likely just trying to connect and share her good news/hope - however, she probably didn't realize how it could make you feel. Your feelings are totally justified. My own stutter has improved greatly since my mid-twenties and I'd want to shout it from the rooftops to all stutters worldwide that it can improve and life is so much better without a stutter, but there's no guarantee that fluency will increase for others the same way it did for me (I can't offer any tips - as my hair grayed prematurely my self-confidence grew and my stuttering improved - go figure). A little more than a month ago, I was making small-talk with a Costco employee who was packing my bags and he had a noticeable stutter. Similar to the fast food clerk, I had an urge to reveal that I still consider myself to be a stutterer and wanted to ask him about his experiences, but remembered that not everyone is comfortable talking about their stutter (and this gentleman was working) so I spoke to him like I would anyone else - that's what I would have wanted when I was a young and stuttering bank teller just trying to do my job.