This is my first Torchwood fic, not necessarily my first Janto fic that I've written but I'd like to know what you guys think. And stuff. Anyway, enjoy! It starts out really angsty, but it ends well, I promise.

It's been five thousand years. Five thousand fucking years since he begged Ianto not to leave him. And he hasn't forgotten. Not a day hasn't gone by where he hasn't missed Ianto terribly. A first it started out as a fire, a harsh burn that ripped through his entire being. Now, it dulled to a pain, a pain that Jack Harkness kept close to his heart. And yes, others had taken his place in Jack's bed: none had taken Ianto's place in his heart. "I told you," he whispered to the grave, the grave he's kept so meticulously preserved over the last five years. "I told you I wouldn't forget. As much as I wanted to," he whispered, a few tears slipping from his eyes. "I couldn't forget you, Ianto Jones. I love you."

He pursed his lips together, trying to contain his emotion. It was always hard, visiting Ianto's grave. Thinking about him was one thing, talking to the marble that represents him was another. Subconsciously, he knew that Ianto would've been long dead by now, but it doesn't matter, because he would've rather it been four thousand nine hundred and twenty years as opposed to an even five-thousand. Because it hasn't gotten any easier. Even with Alonso, it still wasn't easier. It will never get any easier.

"I shouldn't have said 'don't'," he mumbled to the marble. He has said this every time he comes to Ianto's grave. Every damn time over the last five thousand years. "It wasn't a 'don't' as in 'Don't say that'. But you...you knew right? I wasn't...I wasn't ready to lose you." With a low, watery chuckle, he added, "I'm still not ready to lose you. I'm completely and utterly attached to you, and it's not fair...why did you have to leave me, Ianto?"

"Do you think I wanted to?" That achingly familiar voice washed over his ears, and for a moment Jack Harkness couldn't even breathe. He turned around, to see Ianto Jones, standing there as if he had only seen Jack yesterday. "Oh, Jack," Ianto whispered. "Jack, I've missed you so much."

"You're either an alien, or I've finally lost my damn mind," was the first thing Jack could spit out. "You're not...Ianto Jones is dead." This was spoken at a near shout. Whoever was taking on Ianto's likeness just to mess with him was going to pay.

"I am Ianto," the other man replied, confused and hurt.

"Prove it!" Jack shouted, though a part of his mind was repeating over and over,This is Ianto. This is your Ianto. Jack, you know it's Ianto, he doesn't have to prove anything.

"There's a sensitive spot, just above your left hip. You used to...you used let out a quiet, breathy moan if I ever pressed on it in public. And there's a spot on your neck, and if I were to bite it right now you'd practically turn into a puddle," Ianto replied simply, reaching out to touch Jack.

"Tell me something only Ianto would know," Jack whispered, starting to believe more and more as each second passed, but he still didn't let his guard down. "These are...these are things any lover could tell me. Although, points to you because these were two of Ianto's favorite spots to kiss... just tell me something only Ianto would know."

"Every morning without fail, you'd roll into my chest, and pull the blankets over our heads for a few minutes because you hated the sunlight and you weren't ready to leave bed," Ianto said, and it was this next sentence that removed any of Jack's doubt, "And you'd say that we could always skip work that day. You'd mumble it right over my collarbone. I'd have to stop you from falling asleep in my arms, by trying to get up...and you'd kiss my neck. Right here." His fingers ghosted over a spot, a spot that Jack knew well on Ianto's neck. A spot he knew very well.

"Ianto," Jack said breathlessly. He ran toward the other man and practically collided with him, touching, kissing, holding every part of the other man's body that he could get at. He buried his face in Ianto's neck, trembling against his Ianto, hardly believing his eyes. "I love you. I'm so sorry...oh, Ianto, you're here. How...I...?"

"Easy, cariad," Ianto murmured, letting out an errant sob, clutching tightly at Jack. "I've got you, and I'm not letting go." Jack looked up questioningly, and Ianto answered his silent question with, "The Doctor. I was dead and then...suddenly, I wasn't. I was aboard the Doctor's ship, and he brought me there, said he needed to do one quick thing and then he'd bring me back and then..."

"It's been five-thousand years," Jack mumbled lowly, but he almost didn't care. Ianto was there. A realization hit him. "You're immortal."

"I think so," Ianto said. "I'm not sure. A year on the planet we were on was five-thousand years here, but I...I would still age, wouldn't I?" They paused and then both shook their heads, hardly caring about the logistics of it all.

Ianto continued his story, "And he left me there." He caught Jack's furious look and added, "Not on purpose, Jack. Something happened, and the Doctor had to leave, I missed my ride on the TARDIS. I was starting to think he wasn't coming back." Jack gripped tightly at Ianto, realizing how close they were to spending their immortal lifetimes apart. "And then a rift opened up. And he came back. And I asked the TARDIS if there was a way I could spend the rest of my life with you. And she brought me here...and..."

"And you heard me crying over marble," Jack said, reclaiming his spot, buried in Ianto's neck. "And now you're here...you're back. You're mine again." He pulled away for a moment to ask, very seriously, "You are mine again, aren't you?"

Ianto pressed his forehead against Jack's and murmured, "I've always been yours. I always will be yours." He took a deep breath and whispered, "I'm sorry for doubting."

"You won't have to doubt again," Jack murmured. "You've come back. You've come back. Don't ever leave me again?"

"Never," Ianto whispered, kissing Jack's forehead. "Never again."