Hi ya I am so sorry to hear about Fen thats awful ppor little one. You did the best you could for her. You have to give henna plenty of love and tlc she needs to keeping eat she cannot starve herself otherwise her gut wil pack up rabbits guts have to keep moving otherwise if they don't their gut will pack up altogether. Try anything to get her to eat even fruity baby food anything you can do to make her eat will do for now. If she doesn't eat at all she will need to see the vet and they may give her an injection to keep the gut moving. She is grieving I know and she needs time. One of ours she lost her friend and she stopped eating and I tried everything lots of tlc and different food and she started eating.