I subscribe your words. But, there’s a point. The lady should write to the OP to show interest in how the meeting went and say how she couldn’t attend for one or another reason. However she waits for the OP to contact her. It seems to me little caring from her part.

I’m not saying to put a cross on that person. Everyone messes up sometimes but, it’s something to consider if some other mean behaviour is repeated. The OP will be aware of a pattern from this person and the OP will know how to react from then.