Spoilers alert: to those who have not yet seen the movies or read the books there will be spoilers.
Disclaimer: I do NOT own The Hobbit, or/and LOTR, all the credit for that goes to the author, I only own the story and the idea. I do this out of pleasure without any benefit, besides the opportunity of giving a new story who also love this pairing.
Chapter 1
King Thranduil remembered when his Mother first told him about the way elves loved. She told him that when the time came a name would appear on his left wrist, the owner of that name would be his destines love, and the name would be seen only after the elf had seen their mate, Thranduil remembered how her Mother had looked at his Father then, her face full of love and devotion. She told him that she had first seen her mate in one of her father's council meetings, after only a few moments her name appear on his wrist. An elf Love was for the rest of their long lives, very few elves were gifted with the blessing of a second name to bear in the hearts, and even fewer were gifted with a non-elf Love. Those whose Love was not an elf didn't always had the certainty that the feelings would be returned, not all of the creatures in Middle-Earth had the same customs as Elf did, although that rarely happened.
The Elvenking went back to the day he first met his wife, he had fell in love with her instantaneous, her strength and sorrow made him want to show her love and happiness. Such was his love for her that he even went as far as disobeying his father, Oropher, he proposed to Elerrian, his Love, but she refused, time passed and they saw each other again, this time when he proposed again she accepted. During the time they had been apart Thranduil was barely able to keep his sanity, such a rejection from his Love hurt so much. He loved her dearly but even their love for each other could do little to minimize their fights and arguments, they day she departed he was overcome with so much grieve and sorrow that he could not think straight for days.
Thranduil would always be thankful to his wife, for she gifted him with a child, his son Legolas Greenleaf, even if he rarely show it but he loved his son with all his being and it pained him to see Legolas mourn over a love not returned but Thranduil knew that the feelings he feels for Tauriel are not real. Tauriel herself has found her Love, that youngest dwarf of Thorin's Oakenshield Company, he had always favored Tauriel, threated her as her own child, she reminded him of his wife, when she was exile from Noldor and was trying to find a place in the world.
Now, sitting on his chair inside his tent Thranduil though about the new and current events, his right hand was unconsciously caressing his left wrist, were Bilbo's name was written. The Hobbit really was something special, and Thranduil had to admit that he truly hoped his feelings are returned. This felt different than with Elerrian, this feeling felt more innocent, more pure, somehow. A commotion outside broke off Thranduil's thoughts, standing up he went over to his tent opening thinking some of his elves had gotten into a quarrel with one of the Men. That was not the case however, running between Elf and Men alike was the men Gandalf had chosen as Bilbo's guard, fearing the worst he stepped outside he caught the men's eyes and waited for him to reach him before asking for the hobbit, his voice void of any emotions, although inside he was not as composed.
-"If I'm not mistaken you are supposed to stand guard in the room that was provided to the hobbit"- said Thranduil, his expression emotionless.
-"And I did until he disappeared, now tell me where is that man with the pointy hat?"- said the man demanding, at those words Thranduil felt his heart beat faster. –"Are you going to tell me where he is or just stand there."- The human continued
-"What do you mean by disappeared? - said Thranduil, anger coating his words, he saw the human take a step back apparently just now realizing who he was talking to.
-"He just wasn't there a-after I came b-back"- he said stammering, Thranduil couldn't stop himself from taking a step forward glaring down at the pathetic form of the human in front of him.
-"and why did you dare left him alone after it was clearly told to keep an eye on him at all times!- the Elvenking was never an impatient elf, he always manage to keep himself under control, but the pain on his chest was too great, and it hurt so much. Bilbo had gone back to the mountain, that was for sure, and Valdar knows what could happen to his hobbit should the king under the mountain find out about the stone.
The human was a shivering mess by now, opening his mouth to speak he was interrupted by the thundering voice of Gandalf. –"You I told you to keep an eye on Bilbo at all times!"- Gandalf said coming closer to them, Thranduil had to admit the wizard look intimidating, -"where is he? Please tell me he didn't go back to the mountain"-
-"Where else would he have gone, Mithrandir? He was reluctant to stay and at the first opportunity went back to the mountain"- interrupted Thranduil, his heart aching from the knowledge that Bilbo had preferred to risk his own life for a dwarf.
-"Does he not realize the gravity of this situation, Thorin's mind is clouded by the Gold Sickness, he will kill him!"- Thranduil agreed with the wizard but he could not, would not think about that, Bilbo had to come out of the mountain alive, he had to.
-"We attack tomorrow at dawn, I hope our Hobbit is still alive by then"- without another word Thranduil turn elegantly on his heel and get back inside his tent, despised his cold words Thranduil couldn't stop worrying about Bilbo, he wanted him back, be sure that he was safe and out of harm's way, hold him in his arms. –"I just found you my little one, and I'm not letting you go"- whispered the Elvenking looking off into the mountain, -"Thorin Oakenshield, if you so much as hurt my Love I will make sure you never get to see your kingdom again"- promised Thranduil, a deep anger and determination burning in his ice-blue eyes. Inside the mountain, unknown to the Elf, and Men alike was a small creature of blond short hair, and blue eyes debating whether or not his decision of leaving was the best choice, Thorin was slipping into his madness more and more by the second, and for the first time in many months Bilbo wished he would've never went out into this adventure.