Aragorn fell in love with Arwen at first sight. Thirty years later, the two were reunited in Lothlórien. Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marrying each other.
It narrates the love of the mortal Man Aragorn and the immortal Elf-maiden Arwen, telling the story of their first meeting, their eventual betrothal and marriage, and the circumstances of their deaths.
Both of them are skilled with a sword, and both want to fight to protect their people. Aragorn is one of the few people who admires Éowyn for her warrior spirit, and encourages her to follow her heart. Éowyn comes from royalty, as does Aragorn, and a marriage between them would be beneficial for both of their kingdoms.
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.
Arwen probably got to know Legolas as her husband's friend and as the leader of the Elven colony in Ithilien. As Mary Tower points out, it is possible that they are distantly related, but it's nowhere stated.
Elrond didn't want his daughter to die. Her choosing to marry Aragorn meant she chose to die, not to sail into the west with her people. His qualms with Aragorn were more about Arwen's mortality than anything else.
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.
Legolas does not marry or have any children, based on the appendix of The Lord of the Rings. Regardless of who his mother was, Legolas is the last of his line. When he sails into the West at the beginning of the Fourth Age, he leaves no family members behind.
The Lord of the Rings films showed Arwen (Liv Tyler) dying due to her connection to the One Ring. The closer Frodo Baggins (Elijah Wood) and Samwise Gamgee (Sean Astin) get to Mount Doom, the closer she gets to death.
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).
Arwen didn't feel the same way for some time but Aragorn was firmly and devoted to her as his love was only given once and stayed with her forever. He never considered Eowyn as Arwen always held his heart, for 68 years at the point of him meeting Eowyn.
And when they later meet at Rivendell, the two clearly have a long history together stretching long before joining the Fellowship. This isn't surprising, as, despite their looks, Aragorn is 87 during this era, and Arwen is over 2700 years old, so they've had more than enough time to know each other.
Isildur's father was Elendil, descended from Elros, founder of the Kingdom of Númenor. Since Elros was half-elven, from the marriage of Beren to the elf Lúthien, he and his descendants enjoyed much longer life than other men.
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.
Around FA 52 (FA as in First Age), Galadriel came to Doriath. Galadriel was one of the Ñoldor who came to Middle-earth wishing to see the lands and rule a realm of her own. She came with the second host of Elves from Aman with Fingolfin and Finrod. In Doriath, she and Celeborn fell in love and married.
Tauriel gave her love to Kili in the movies. In “Laws and Customs of the Eldar”, or LACE, it talks about elves, and that they do not marry unless they truly love one another.
Legolas and Gimli's relationship is strong in The Lord of the Rings, even though it wasn't explicitly romantic in Tolkien's source material. The members of the Fellowship in The Lord of the Rings forge an unbreakable bond while on their mission to destroy the One Ring.
"What a great adventure it shall be," Legolas replied, ushering Aragorn to the head of the ship, never letting go of his hands, kissing him softly on the lips. "I could not have picked a better person to adventure with than you Aragorn." "Let us go home Legolas," Aragorn said, staring off beyond the horizon.
However, a specific scene in The Lord of the Rings has led fans to theorize that Frodo and Legolas didn't talk, not because of time, but because the hobbit didn't know Legolas' name (and was too embarrassed to ask).
The actor is suffering from Legolas Syndrome — where you accidentally get cast into a role that suits you far more than your real-life looks, leaving you with a tricky predicament after the wrap party. Do you A) nick all the costumes and stay in character the rest of your working life, or B)
In the year 121 of the Fourth Age, after Aragorn's death, Arwen died of a broken heart at Cerin Amroth in Lórien, and was buried there one year after the death of Aragorn, to whom she had been wedded for 122 years. She was 2901 years old.
However, he does not possess the ability to live forever, and he cannot choose to be mortal or immortal like Arwen, the half-Elf he loves and eventually claims as his wife. Because Aragorn is mortal and Arwen chose to remain in Gondor and become mortal, their son, Eldarion, is mortal as well, despite his Elven lineage.
