It could be tomorrow. It might be five years from now. Somehow, it could even be never (never rule that out).
At some point, that thing you’re so focused on right now will be no more. It will vanish. Poof.
Alas, a memory.
You could have prompted it. She could have initiated it. Maybe nobody wanted or expected it.
This just happens. Sometimes without warning. Often when you least expect it.