Hux and Kylo are stranded somewhere and have to depend on each other for survival - trusting the other to tend to their wounds, find food, huddling for warmth, not killing each other out of annoyance and anger and desperation, etc.
Bonus if Hux gets all scruffy and bearded and unkempt similar to the way Domhnall Gleeson looks in The Revenant.
Hux/Kylo, depending on each other for survival
Bonus if Hux gets all scruffy and bearded and unkempt similar to the way Domhnall Gleeson looks in The Revenant.