Because yes,
Claire chooses Frank for 20 years until his death and then she finds out Jamie survived Culloden. She heads back to the past to choose Jamie for a second time. There's no way Claire and Jamie will choose someone other than themselves after this. They are endgame, and it doesn't matter what anyone else thinks.
Season 6 of Outlander ended with a bang (literally — Jamie and Claire got in a firefight with Richard Brown and his obnoxious committee of safety). Claire was arrested for the murder of Malva Christie (Jessica Reynolds), but there's no way Claire actually murdered Malva, right? It was Adso the cat, obviously.
“He's about 25,” Gabaldon said. It's an interesting response. If you're up to date on the series, then you know that Jamie is not dead at the age of 25.
We pick up shortly after with the end of last season, which is a great cliffhanger. America really is in sort of turmoil. There's revolution, and Jamie and Claire are separated. There's also the prophecy of Jamie and Claire's death, you know, that they're supposed to die in a fire.
She previously told one fan, who hoped for Jamie to time travel in the 10th and final novel: “Sorry, not happening.” Nonetheless, Jamie does have some powers after he was able to project himself into the future and appeared in Inverness with Frank Randall (Tobias Menzies) spotting him.
In the series' earlier seasons, viewers saw Claire, a World War II veteran nurse visiting Scotland just after the war, mysteriously travel 200 years into the past. She later journeyed with her new husband, Jamie Fraser (Sam Heughan), to several different countries; and also returned back to the future as well.
Author Diana Gabaldon, who wrote the book series upon which the Starz TV show is based, has confirmed that it is Jamie's ghost that Frank saw, but she's also stated repeatedly that Jamie cannot travel forward in time.
In theory, as Jamie was born first in the past, he will die first and Claire dies after him.
Jamie denies having slept with her, but the damage to his and to Claire's reputation is done—and the bond between the Frasers and Malva is severed, until just a few weeks later, when Claire finds Malva murdered in the garden. “It's like the peak of the tragedy, and it's so visceral.
It happens toward the end of the seventh book and into the eighth. I've seen a lot of people get to An Echo in the Bone recently, and they're shocked to find out that Claire and Lord John Grey marry.
Jamie marries Claire to keep her from falling into the hands of the evil Captain "Black Jack" Randall. They have one child, Faith, who doesn't survive birth; an adopted son named Fergus; and a daughter, Brianna.
Jamie did remain faithful to Claire. It didn't stop him from being aroused. However, it just made him miss and want Claire more. Even in their 50s, the two are ready to be with each other sexually.
Nowhere in the book does Claire forgive him because he feels sorry for doing it. He felt justified doing it. To say that we (as readers) can't see the difference between real life and fiction is sort of insulting.
During his time apart from Claire, Jamie slept with several women, including Mary McNab (Emma Campbell-Jones) and Geneva Dunsany (Hannah James). And of course, there was Laoghaire MacKenzie (Nell Hudson) as well who had her sights on Jamie since season one.
During this time, Jamie was left close to death and bereft without his wife. However, after some convincing from his sister Jenny Murray (Laura Donnelly), Jamie married Laoghaire.
Sadly, William's birth resulted in the death of his mother Geneva and as Jamie was unable to step up given his position at the house, Lord John Grey agreed to raise William as his own.
To recap: By Gabaldon's timeline, Jamie and Claire's age difference is 5.5 years, while on the show, that age gap shrinks to 4.5 years.
Claire walks into the stone cleft. In 1766, Claire wakes under a rowan tree below the stones. It is raining and she is soaking wet but also certain that Jamie is alive in this time.
The magical moment came in season one, episode 12, which was called Lallybroch.
Instead, she sacrificed some of her dignity to get him out. Jamie decides that he can forgive her. He can move on from it.
While on a second honeymoon in Scotland with her husband, Frank Randall, Claire inadvertently travels two hundred years into the past, where she meets and eventually marries Jamie Fraser.
1701-1800. Jamie and Claire have been separated for 20 years. He is hiding near Lallybroch after surviving the Battle of Culloden. Jamie is blackmailed into sleeping with Ellesmere's young fiancée Geneva and impregnates her.
Claire and Frank remained married to the end on Outlander.