A partner much older or younger is read as meeting another stage of life. Dream books link it to wanting the wisdom of experience, or the energy and freshness of youth.
Where in your waking life have you met something like this lately?
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.