Being catfished is read as fear that someone is not who they seem. It can also reflect a worry that you present a version of yourself that is not quite true.
When this appeared in your dream, what were you feeling?
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.