Aragorn and Boromir, unrelated by blood but united in their love of Gondor, were the only two men who set out with the Company from Rivendell. When Boromir first meets Aragorn at the Council of Elrond, he is immediately suspicious.
The kiss is intended to be platonic, we assume, but that won't stop imaginations running wild about how such a scene would have been executed.
Boromir is the son of Denethor II and Lady Finduilas of Dol Amroth. He had a younger brother Faramir. A year after Faramir was born their father became the ruling Steward of Gondor, and Boromir became heir apparent, inheriting the Horn of Gondor.
They were brothers. On the other hand, Aragorn and Boromir's father Denethor resembled each other almost like they were brothers. Thorongil being Aragorn's alias while serving in Gondor's army in his youth. So it's also possible that Faramir also resembled Thorongil/Aragorn, but they were not brothers.
Arwen was a distant relative of her husband Aragorn. Aragorn's ancestor, Elros Tar-Minyatur, the first King of Númenor, was her father Elrond's brother, who chose to live as a Man rather than as one of the Eldar.
They are both elvish nobles, as Legolas is the son of King Thranduil and Arwen is the daughter of Elrond. They are both well-educated and would have known each other as the community of elves is quite small.
Arwen isn't necessarily dying because of the Ring, but now that she is mortal, she is dying through the slow decaying of time. Arwen also faces the same fate as all those in Middle Earth should the Ring Bearer fail his mission. So in that way, her fate is tied to the Ring.
Éowyn falls in love with Aragorn, but though he respects her, he does not return her feelings, as he is betrothed to the elf Arwen.
"He was Aragorn son of Arathorn, the nine and thirtieth heir in the right line from Isildur, and yet more like Elendil than any before him." Aragorn was a descendant of Elros Tar-Minyatur.
Aragorn is not half Elf, although he is a descendant of Elros, who is half Elf (and the brother of Elrond, the half-Elf who raised him), which explains why Aragorn's life span is unusually long.
Yes, Sean Bean was Ned Stark in Game of Thrones and Boromir in The Lord of the Rings, but it's that meme that will outlast him, and he knows it. “For some reason, the parts I play, like Boromir or Ned Stark, have a life online long afterwards,” he told the Radio Times. "I keep seeing, what do you call them – memes?
Because he knows that Aragorn is the True King and he wants to stay in power.
Faramir lived to be 120 years old, due to the large percentage of pure Dúnedain ancestry he possessed as a member of the Gondorian nobility.
As Boromir dies, he tells Aragorn that he failed, that his kingdom will fall. He regrets his attempt to take the ring from Frodo and condemns his own actions. In his final moments, Boromir does not worry about his death, but rather the people he believes he has failed.
Like his father, he is "cursed" with Isildur's greed and is obsessed with the Ring. He believes that with the Ring in Gondor's possession, they could win the war against Sauron. He joins the fellowship so he could take the ring from Frodo and return it to Gondor but becomes attached to his comrades.
Boromir was the weak link within the Fellowship due to his desire to see it as a tool of warfare: glory and pride were its avenues to his heart. Over the months the questions and doubts grow, until the Ring had a gateway to influence him fully.
After he was attacked by the orcs, they transported his lifeless body to Mordor at Sauron's behest. Sauron revived Isildur with one of the nine rings, and then tortured him until his spirit was broken and he became a Nazgûl.
The line of the kings of Numenor eventually became the kings of Gondor and Arnor, and it is from that line that Aragorn is descended. Which makes Elrond his uncle and Arwen his cousin, an unholy number of generations back.
The direct descendant of Elros is Aragorn. In terms of genealogy, Elros would be Aragorn's great grandfather with about 60 "greats." This makes Elrond Aragorn's great, great, etc. uncle, and since Arwen is the Lord of Rivendell's daughter, she and Aragorn are first cousins many times removed.
It is later mentioned that Tauriel is a talented warrior and was therefore made leader of the Mirkwood border guards. Legolas, the son of Mirkwood's Elven king Thranduil, is indicated to be attracted to her, but as she is a lowly Silvan Elf, she does not believe herself worthy of him.
Arwen was her granddaughter
Galadriel and Celeborn had a daughter named Celebrian, who married Elrond and became the mother of Arwen (as well as her brothers, Elladan and Elrohir).
Aragorn and Legolas are long-time companions and best friends since Legolas' father Thranduil sent him to live among the Rangers of the North. Aragorn and Legolas grew close, up to the point where Aragorn revealed his true identity to Legolas. Throughout his journeys, Aragorn and Legolas are as close as brothers.
And after their marriage, both Aragorn and Arwen are mortal. Arwen, therefore, could not set foot in the Undying Lands without special permission. And she wouldn't be likely to go after it in the end. So unfortunately, she would not go there, unlike Legolas, after Aragorn's passing.
Legolas is an elf, so he is immortal. However, he is only immortal in the sense that he will never die of old age or sickness. He can die in battle.
Arwen didn't want Aragorn to die, because if he died so would she. She said she wasn't tired of living yet. But instead, Aragorn chose to die and Arwen lived a year longer before dying herself.