My only comment was, "she doesn't know you very well if she said that about you". He looked at me and smiled and of course agreed
Good job of biting your tongue and sticking to the high road.
Now, it's possible that after that tantalizing tidbit, they'll make up and move forward for a while. She, after all, has a lot riding on this and will probably go out of her way to make up with him. Don't take it too hard if that happens - this ain't gonna last. He's already tired of her, and she won't be able to change her spots for long.
Meanwhile, keep having an interesting and fabulous life yourself.
