I agree here pretty much with what everyone else has said... with the exception of:>> If she conducted herself in the above manner and the fella still wasn't satisfied, I would alert the ad and have it removed
(if possible) <<
It seems the review (it's clear you meant review here Summer) laid out what actually occurred so that anyone with any sense at all can determine for themselves that she did NOT actually flake & that his low ratings were uncalled for. But a low rating because he's more pissed off at being canceled on & then reacted more negatively than another guy would have (in this case I think than MOST other guys) is NOT a reason to "alert" & remove a review.
See, this pisses me off. I think the ONLY time it's appropriate to alert & remove a review is when there are obvious lies & malicious intent, or personal info revealed. Period.
Low ratings? That's life, we will get some. Some guy reacts more strongly to being canceled on than most men would, but he still relates the facts correctly? So what?! I mean, it sucks for a little while, but if he tells the truth & then dings her for it more heavily than anyone else would have? That's his prerogative!! It's his opinion. Period. And that is what a review is SUPPOSED to be! His opinion. However silly, however anyone may disagree with his response, if he related the facts truthfully, his reaction to them should get to stand. It is his review, his reaction, his honest response to the situation.
I think in-boxing him & apologizing & saying she didn't realize how much that affected him, to the point that he would then rate her so low because of it...blah blah blah.... would be one way to handle it. But having the review removed? That's combating one childish action with another. And another action of **equal immaturity**, I'd add.
It is this very practice of thinking any low-rated review that seems "unfair" (even if it IS unfair) is OK to have removed that fuels the anger & suspicion among clients & posters here about their reviews getting removed. It also tends to make all providers look bad by putting us all in the same "I'm so sensitive I can't take any negative criticism at all for any reason" pile.
And *that* pisses me off!
But I think that last part is pretty obvious isn't it? 
RS