I can understand her initial concern. but her unwillingness to reconsider is the main problem. As others have said, you could be a cat-hoarder. But surely once she knew they were all maintained with proper care a home-check would have resolved anyoutstanding concerns she might have had. She could even, reasonably, have asked to see their papers to confirm your assertions, but to deny you outright just shows a very limited mind, and someone who has set ideas that no amount of reason will change. Some people are like that. Nothing you can do about it. It is her you should feel sorry for Michelle. You haven't done owt wrong.