There are usually some leftover details to attend to at the end of an adventure. These generally involve game mechanical things like healing wounds, dividing up the treasure, and awarding experience points.
But sometimes the players have character development things they want to handle. If there's going to be a break before the next adventure in the ongoing campaign, then they may want to arrange for their characters to study skills, research spells, or travel to foreign places. In general, it's good to allow this sort of thing.
Sometimes it can lead to surprising things.
Anakin: The adventure can't end there. There's important character development that needs to be handled.
GM: What did you have in mind?
Anakin: Padmé, we've been through a lot together, and I haven't treated you as well as you deserve.
Anakin: I've been selfish. I've tried to keep you safe, but... it's so hard.
Padmé: This is roleplaying, right?
Anakin: Why can't you just... no, no, sorry. I can't keep you in a gilded cage.
Padmé: Okay. I know what you mean. I wanted to keep you safe too.
Anakin: I need to know you love me.
Padmé: Oh... uh... well yeah. Of course.
Anakin: Say it.
Padmé: I... uh... love you? Anakin.
Anakin: Good enough.
Anakin: Padmé, ever since you saved me from slavery on Tatooine, I've been illuminated by your presence, and distraught by your absence.
Anakin: I love you. Will you marry me?
Padmé: Um... sure.
Padmé: This is going to be worth so many XP.