Minuette has always had an acute sense for time. So when Starlight Glimmer's interference in the past starts rewriting history, Minuette is able to pull herself, along with Berry Punch, out of time for protection. Now stranded, sort of, Minuette offers her wife a rare chance to travel to any point in their pasts, saying they are free to go where they please as the timeline "works itself out", but they only have a few hours at best. Once time is fixed, Minuette's magic will fade and they'll need to get back to their own time.
But for Berry, that is more than enough time. There is one pony from her past that she would give almost anything to see again. She just isn't sure if that pony will want to see how Berry turned out, or if Berry can even face her.

(Teen because Berry and Minuette were kind of "busy" when it all started)