This allows a romance to be referenced in a sequel or a side story without requiring a PhD in your own save file.
The Foreign Service Institute () often discusses the concept of "portable relationships" in the context of the transient lifestyle of diplomats and expatriates . In this world, "portability" refers to a partner's ability to maintain their own career, identity, and mental health while moving every few years.
It was on one of these trips, on a train ride from New York to Chicago, that she met Jack. They struck up a conversation in the café car, bonding over their shared love of literature and music. As the train rumbled on, their conversation flowed effortlessly, and before she knew it, they had been talking for hours.