Apologising is traditionally read as regret, guilt or a wish to repair a bond. Receiving an apology is taken as a longing for acknowledgement that has not yet come.
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.