A black rose is read as farewell, mourning or a love that has ended — and also as rebirth and defiance. It stands for change in the heart, not for a literal loss.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.