this'll be a modern AU, but could be historical. possible angst??? but can be fluff, so go off, babes
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Person A has gotten their career going lately, and they come home to Person B one day, telling them they're going on (a business trip, tour, etc.) in a few weeks.
Person B isn't too happy about this, though, mostly because they already don't get to see Person A too much as it is and the holidays are just around the corner, so they end up getting in a fight about it.