In Star Wars: Episode VII The Force Awakens, Princess Leia leads the Resistance, and Han Solo is back to his smuggling, and when they see each other halfway through the film, they seem distant, like they haven’t been together in a long time. “You changed your hair,” Han Solo states. “Same jacket,” Leia responds. That’s not something said between partners who spend time together regularly, but they were married after the events of Return of the Jedi, so what happened? How did they become so distant? Republic Under Siege is beginning to answer that question.

https://screenrant.com/star-wars-han-solo-princess-leia-relationship/