Yes, he had the intention to marry Abigail for a brief time, probably convinced it was to do right by her, something Arthur failed to do with Eliza because Eliza straight up rejected that notion.
Arthur rarely talks about Eliza and Isaac, suggesting that their deaths are still a sore spot for him. Arthur also falls in love with Mary Linton, and they eventually get engaged.
Francine Frensky
Francine may be in love with Arthur. Binky told Arthur that Francine has a crush on Arthur. Francine will marry Arthur.
Hosea and Dutch eventually met 14-year old orphan Arthur Morgan, who Dutch decided to take under his wing. Around this time, Dutch also began a romantic relationship with Susan Grimshaw, who also joined the gang. Their relationship would end, however, when Dutch fell in love with a woman named Annabelle.
8 She Slept With The Gang
She slept around the Van der Linde gang and had relations with many of its members. It was through this that she grew close to the gang and its members, particularly John Marston.
As the gang slowly falls apart, Javier continues supporting Dutch; he also chastises Arthur for disapproving of Dutch's decisions and leadership.
Fictional character biography
Arthur had a son, Isaac, with a waitress named Eliza; he demonstrated regular support for them until they were killed in a robbery. Over time, Arthur transformed into Dutch's most dedicated enforcer.
Arthur died at age 35 or 36, from tuberculosis. This is when the famous gunslinger Doc Holiday died in real life, who also had tuberculosis. With low honour, Arthur is a villain protagonist who only really cares about himself.
Sadie was hinted to be in love with Arthur, she trusted him the most because he reminded her of her dead husband.
Lancelot "The flower of chivalry," he is the greatest of all knights and Arthur's closest friend. Lancelot is a noble and honorable man, whose reputation is sullied only by his sinful relationship with Guinevere.
Abigail Marston
Dutch hinted that Arthur (and the other members of the gang) may have had sex with Abigail before her relationship with John when he is confronted by John at the bank in Blackwater in 1911.
- Mary-Beth.. 21-year old gang member who seems to have a schoolgirl crush on Arthur. Assumed to be love interest because her dance scene.
Mordred is often the character that betrays King Arthur, but Queen Guinevere and Lancelot also betray King Arthur as they are having an affair. The circumstances surrounding the betrayal vary.
Dutch Felt Everyone Was Betraying Him
As one of the original gang members, Arthur is one of the only people that can attempt to talk some sense into Dutch. However, it doesn't go well. Dutch accuses Arthur and everyone else who disagrees with his ideas of betraying him.
TL;DR - John doesn't mention Arthur in RDR1 because 1) It hurts him to think of Arthur, 2) He's ashamed that Arthur saved his family, 3) Arthur said to not look back.
In the story, flashbacks reveal that she was hanged for her part in the witch trials. Over the centuries, she has existed as a ghost, using her supernatural powers to kill those she believes are witches.
Abigail Had Relationships With Most Of The Gang
Because of this, she did spend intimate time with most of the gang, save for a few who were already loyal to another partner. Ultimately, though, she fell in love with John and left that profession behind to focus on raising a son.
By the time the play begins, Abigail still loves John, but the feeling that does not appear to be mutual, as John won't continue the affair with her.
Without a doubt, Arthur Morgan is not only the best character in Red Dead Redemption 2 but also the best one ever created by Rockstar Games. He is the heart and soul of the Van der Linde gang. Arthur is a tragic hero in the game.
It's never fully stated if Dutch ended up regretting how things ended with his gang, and specifically Arthur. Despite whether or not he lost his mind, or was consumed by greed, it's hard to assume he never felt any regret or remorse over how things played out.