First,
I should think the manager thinks your friend is at fault for setting up the meeting in the first instance. Your friend should have known more / better about their internal situation and requirements and ensured that all were on the same page. That's how I'd think the manager is viewing the situation.
Second,
IF the manager called you back, this is a perfect manner in which to resell yourself.
Example to respond to your "hypo"-call:
"Thank you for telling me that, and I am sorry as this is not the experience that I wish to be a part of. I too am disappointed as I effectively lost a half-day of work. The objective I understood you were trying to acheive was XX/YY/ZZ and I felt I could offer a beneficial point of view. What did you understand the objectives to be?"
The aim is, the quicker you apologise and then
get the client talking, you can actually change this around.
From their answer you have the opportunity to move the conversation in many ways. You may just get the opportunity to repitch, when you understand the true objectives of the manager.
There are 100 alternate responses that you could use, mostly variations on the theme, that enable you to put the manager in charge (so to speak), appease their ego for taking out their time, and getting them talking about their business.
Because until you get the decision maker talking about their business problem / objective / budget / timeframe / alternate solutions etc. etc. , your chances of the engagement are slim.
The other alternative is for you to make the call back to her. Your choice of an apologetic approach or an aggressive approach is according to your own character and circumstance. Either would potentially work although I would suggest the apologetic / self-deprecating approach is usually more successful.
Otherwise, if you're fully booked out for the next 6 - 12 months, who cares?
But hypothetically, she is very cute, single, completely horny and the only reason she wasted her time to call you up again was she wants a hot date.
Good luck!!