Watching others enjoy what you are left out of is read as a longing for connection and experience. Dream books ask what kind of life you feel is passing you by.
Has this come up in your dreams before? What was going on in your life then?
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.