I'm so sorry for your friend! I know how she feels, my beloved Katz has also died from congestive heart failure three years ago, and I felt I have lost my best friend.

Like the others have said before... be there for her and listen, and let her know you understand her pain... and if there are people who will tell her "it's just a cat", she better stays away from them during the grieving process.

Please tell her my condolences, I'm so sorry about her loss!

Kirsten