Cat-related guilt

There was a knock on the door at lunchtime today. A woman and a little girl were standing there, and the first thing they asked was, "Do you have a cat called Freyja?". We said that we used to, but she was living somewhere else now, and their faces just fell. The little girl looked like she was about to burst into tears. It seems that the mystery of where Freyja went every day when we let her out has been solved - she was coming to them for her breakfast first thing in the morning, and just hanging out for the rest of the day being petted and eating their tomatoes.

We did explain that she had gone to another family who were really excited about getting her, but I feel terrible. The woman asked if there was any chance we could get the cat back so she could go and live with them instead. If we had known beforehand that she was going there, I could have just let them take her straight away, but it's a bit late now. I don't know how well that would have worked anyway, because it would have been very hard for us to stop letting Freyja into our own house when she scratched on the door, but we certainly could have at least considered it. Oh well, what's done is done and I am happy that she's in a good home now - it was just so hard to see that little girl's sad face.

I might call round to their house with a photograph or something, just so they can remember her. Maybe that would just make it worse, I don't know. Gaaah!