Ask Priyanka Chopra Jonas what it's like to hold a marriage together across continents, and she doesn't pretend it's effortless. On InStyle's Ladies First with Laura Brown podcast in 2021, the actor described filming Citadel in London for more than a year while her husband, Nick Jonas, was back in the US and admitted the stretch was hard. It's a candid picture of a couple who look polished in public but still had to work at staying close. Here's…