Such a short little life. Sometimes the fighting is just not enough. Bless you for caring enought to foster even though it is hard. Remember this little sweetie knew she was loved and protected for those weeks.
I'm so sorry for your loss. One of my foster kittens was named Daisy, and I would have been devastated if anything would have happened to her. Thank you for giving her all the love in the world during her short little life.