Lavender powder is only out of season at my store apparently

This lady comes in today and asks for a "matcha with the lavender stuff" and I tell her that unfortunately we don't have any lavender powder as it's out of season. She makes the biggest stink face and goes "No it's not. I get it at every other store." I reiterated that yes, it is out of season and we don't have it. She proceeds to yell at me "IT'S ONLY OUT OF SEASON AT YOUR STORE!" At this point I turn to my coworker next to me in disbelief at this tantrum over lavender powder and I guess that made her even angrier as she continued yelling and shaking her finger at me. Eventually she storms off and leaves me wondering what could be going on in her life that she's at the point of yelling at a total stranger over lavender cold foam lol