I would not internalize the experience with her being like this. If you want to buy stuff in the future, just walk in, be confident, and buy it from someone (whether or not she is there). She cannot ban you from the store for not wanting some perfume that day, especially as you have indeed bought things, unless you do something illegal. You showing up confident and getting your future business done will be enough to show her she and her bad business practice of walking you out has no power over you.
And perhaps bubble it up as a direct suggestion to her next time you are there to not walk paying customers out the door over a perfume sale as they may not come back to the store or the brand due to experiences like that.
Thanks for the kind words and positive encouragement! I love the sentiment to just be confident and get things done. I need more of that everywhere I go
