“I would love to have really heard what the vendor said when she made the offer “
Its irrelevant what the vendor said or thought. She was perfectly entitled to her offer & so was the seller to not to accept it. That is how the market works and not who said what.
I only wished that more buyers were like her & not swayed by the agents, sunshine, Tinto etc.
Good luck to her. Other prospective buyers should take leaf ……