Bob, she agreed to sell you a gun and you agreed to buy it. You sent her money, which she deposited. Only after that did she get an inkling that gun might be worth more as a higher grade than she had known. So she tried to sell it elsewhere for more money. Without having returned your cash. She returned your cash when it became obvious that collector gun community, not just you, would be making her life difficult.
She is a snake and you have done well to come out even. Just remember, most aren't like her. Some....but not most.
