Response from Gavin:
I'm really sad that Sue feels this way; but it's not surprising. I think her poor review of me is sour grapes, because could not stay in her apartment when it had only one bedroom instead of the two she had listed and rented me.
On my side, I let her know about the problem as soon as I was aware, and I asked for her help. I tried to keep my communications polite and solution driven. She was, well, less than polite; she told me that she thought that should share a bed with my traveling companion, and when I asked for a second bedroom, it was some sort of ruse to trick her. I was taken aback.
If you're considering hosting me, please ask me anything about this experience. Or, take a look at the review from Yassine below, who rented me a two bedroom apartment in Paris for the week before; we had an excellent experience there with a host who did give us both bedrooms.
If problems come up in the future, I know I'll stay polite and solution focused again, and I hope my host will too.