One character has dated all of the others. They're now getting back in contact with all of their exes to check that they haven't missed their One True Love, convinced that if they date someone new they're doomed to be alone forever because [reasons]. Their sexy new neighbour is helping with this plan (with predictable results).

I honestly don't know who I want to be tracking down exes. Kylo and Hux seem most likely to have acrimonious and therefore amusing relationships with their ex-partners, Poe seems more likely to have an early mid-life crisis and panic that he'd die alone. Phasma would just be incredible. Please feel free to throw in ex-sex on the journey.