Aragorn/Relationships

Arwen
Aragorn fell in love with Arwen when he first met her. Arwen even gave up her immortality to be with him. They were true loves and would risk anything for each other. When Arwen was dying, Aragorn grew scared and was motivated even more to destroy Sauron. They eventually married and became King and Queen of the United Kingdom. Seeing that they have a son in a vision, they will have children to come in the future.

Their relationship page is here.

Gandalf
Aragorn and Gandalf knew each other for fifty years by the time of the war of the Ring.

Legolas and Gimli
Legolas and Gimli are Aragorn's companions throughout The Two Towers and The Return of the King. They make up the new Fellowship of the Ring. Aragorn has now known Legolas from his younger says a s a Ranger of the North as seen in The Battle of the Five Armies, as it was Thranduil who told Legolas of Strider. Meanwhile, Gimli is close friends with Aragorn as well. He once reprimands Gimli for swearing at an Elf in Khuzdul, who also was his close friend and companion. He once promises Gimli that he will not tell Legolas that he was asked to be tossed. Once again, both companions wish to follow him twice: Once into the Mountain and the second time in following him into battle.

Frodo Baggins
Aragorn seems to have an older brotherly connection to Frodo. He offers his sword and joins the Company of the Ring to protect Frodo. He wants to protect him with his life and Frodo is (at first) the only hobbit who calls him by his real name. Frodo also seems to trust Aragorn will watch over his younger cousins and the rest of their companions.