Han becomes jealous when he notices Leia having a private conversation with Luke and thinks they might have romantic feelings for one another. She assures him the conversation was about Luke learning that she is his sister, but the jealousy alone is enough for Leia to know that her love for Han is reciprocated.
In Star Wars: The Empire Strikes, Leia only considers Luke a friend, however, she kissed him in a failed attempt to prove she doesn't have any romantic feelings for Han; much to Luke's annoyance. In Star Wars: Return of the Jedi, Luke revealed to Leia that Vader was his father and she - his twin sister.
In a medical center shortly after, Princess Leia checks on a recovering Luke, and in an effort to make Han jealous, she kisses the bedridden hero and walks away. At the time, neither Luke nor Leia knew they were siblings,...
It was during these quiet moments that Princess Leia fell in love with Han Solo. Darth Vader captured Han Solo on Cloud City, and forced Leia to watch as Solo was frozen in carbonite and handed over to the bounty hunter, Boba Fett.
In The Force Awakens, after not seeing each other for many years, Han and Leia are happily reunited. Before going with Chewbacca and Finn to rescue Rey and destroy Starkiller Base, Leia and Han lovingly embrace each other and she asks him to bring their son home.
They aren't cut out for long-term commitment, and the issue of losing their son to the dark side understandably puts a strain on their relationship. Han and Leia drift apart over the years and eventually break up.
Lady Qi'ra was a human female crime lord from the planet Corellia who lived during the reign of the Galactic Empire. She grew up on the streets along with Han as part of the White Worms. Though they were at first rivals, the two scrumrats eventually became lovers.
Luke and Leia never sensed that they were twins until Return of the Jedi despite both being sensitive to the Force. Anakin Skywalker's twin children are the original Star Wars trilogy's driving force, having been separated after Padme's death.
While Return of the Jedi would ultimately reveal them to be siblings, A New Hope implied Luke's attraction to Leia throughout, while the two kissed multiple times in The Empire Strikes Back, with further romantic moments ending up on the cutting room floor, as seen in the movie's deleted scenes.
Leia wanted to lead and reshape the galaxy, but wielding the same power that had corrupted Vader would be too big of a temptation because she would have become a powerful Jedi. So, it was safer to choose happiness, marry Han and avoid becoming a Jedi.
There is a deleted scene from The Empire Strikes Back that makes the kiss between twins Leia and Luke even more uncomfortable due to their now-known relationship as biological brother and sister. In an alternate version of the scene featured in the movie, Leia is remarkably more affectionate toward her brother.
Han Solo's death in The Force Awakens (2015) came about when writer/director J. J. Abrams felt the character was not evolving or contributing to the story's development; he believed that Kylo Ren killing his own father would give him a chance to develop into a worthy successor for Darth Vader.
Han Solo marries Princess Leia and they have three children: twins named Jacen and Jaina, and a younger son named Anakin. Luke reestablishes the Jedi Order, marries a non-movie (but fan favorite) redheaded Force-wielder named Mara Jade, and they have a son, Ben Skywalker (named in honor of Obi-Wan “Ben” Kenobi).
Luke Skywalker and Mara Jade Skywalker's son. Named after Obi-Wan "Ben" Kenobi, Jedi Knight. Former student of Jacen Solo, his cousin. He inherits his mother's red hair and his father's blue eyes.
Anakin Skywalker's birth mystery is solved - his mother, Shmi Skywalker, reveals that there was no father and she can't explain what happened. Qui-Gon Jinn believed that the Force itself created Anakin in Shmi's womb, making him the Chosen One who would bring balance to the Force.
Alderaan's princess knew she had been adopted by Bail and Breha Organa after the Clone Wars, but she had no idea who her parents were. That was until Luke Skywalker told her the truth - that he was the son of Darth Vader, and that she was his sister.
Darth Vader didn't learn he had a daughter until Return of the Jedi, when he stood before Emperor Palpatine. The Emperor's power probed Luke's mind, attempting to goad him to fall to the dark side, and he discovered Leia's existence. "Sister," the Emperor taunted.
Honestly, I only find the kiss Leia gave Luke at the beginning of TESB awkward because she was trying to make Han jealous. The one she gave Luke after she and Lando rescued him is understandable, given how Luke was injured. She didn't know that they were related.
Na'vi Name: The son of Han Solo and Leia Organa, Ben Solo was seduced by the dark side of the Force and renamed himself Kylo Ren: leader of the Knights of Ren, champion of the First Order, and apprentice to Supreme Leader Snoke.
