Livia's father reveals that the betrothal isn't just for status; it’s to pay off a massive debt. If she refuses, her family will be sold into slavery.
The fire spreads rapidly. The Senator’s guards come to claim Livia, but the Senator himself has fled with his gold, leaving Livia’s father behind. Marcus uses his knowledge of the city’s underground aqueducts to lead Livia and her family to safety as the city burns.
Marcus and Livia survive, but they don't get a perfect "happily ever after." Marcus stays to help rebuild Rome under Nero’s new (and questionable) plans. Livia’s family is safe but penniless. They are together, but the world they knew is gone, leaving them with a hopeful but uncertain future. How to Make it Your Own
Remember that all great drama depends on conflict and giving that conflict meaning to the characters.
For a Roman setting, use authentic details like costumes or societal issues (like dowry and marriage) to make the world feel lived-in. A Beginner's Guide on How to Write Drama - Superprof