I don't know about you, but I love the Lord of the Rings. I'm a die-hard fan. I watch at least one of the movies every week, and I can answer almost any trivia question from both the books and the movies.
My favorite character is Legolas. No, it's not because of his looks, it's because of his character. He's brave and gentle and kind and so many more things, and for that I look up to him.
Something else about me is that I'm extremely perceptive when it comes to my favorite fandoms and characters.
While watching the Hobbit: The Battle of the Five Armies (again) I was listening closely to everything concerning both Legolas and Aragorn, because for a long time I have been wondering what it is between them. Now I understand.
When Legolas first meets Aragorn (as he was told to do by Thranduil), Aragorn was around nine years of age. Imagine Legolas meeting a child, and learning that this boy is a King. I think Legolas would spend a lot of time with Aragorn; not only to learn his name, as was his task, but also because Legolas is a Prince and perhaps he could be there for Aragorn, who would eventually have to learn the truth of his past.
Imagine now Legolas playing with a child Aragorn. He probably played hide and seek with Aragorn, he probably told him countless stories. Legolas, if you think about it, really watched Aragorn grow up.
Now think about sixty to seventy years later, to the Lord of the Rings. At this point, I don't think it's just friendship Legolas feels towards Aragorn, but also maybe a fatherly protection for him. In the movies, we see many times how much Legolas really cares for Aragorn. After every battle he goes to Aragorn immediately. It's easy to tell that he'll willingly die to protect Aragorn.
This is just something I can't stop thinking about (in a good way). . . I just love imagining Legolas playing with a child Aragorn.