Jack Harkness looked up as the invisible lift started to move. He glanced around to Gwen, she was present. Jack gazed again at the lift, wondering who else knew how to get in. His eyes widened when he saw who it was, his breath catching in his throat.
"Oh, my god. John?" Jack asked breathlessly, surprised to see his former lover. He had to admit, the man looked good.
"Oh, hello, Jack. Long time, no see," John Hart smirked.

Jack moved closer almost instantaneously. Gwen watched in surprise as the pair was suddenly attached at the lips, showing no signs of coming up for air anytime soon.
Jack grasped at the back of John's neck, pulling him closer as he skillfully maneuvered them over to a nearby sofa. He not-so-gently pushed John down on the couch, lying partially on top of him as they continued. Jack was just sliding his hands under John's shirt when he felt something warm, wet, and definitely not saliva on his cheek.
Jack pulled back, looking at John. He was shocked to see glistening tears sliding down John's face. Jack sat up in concern, pulling John with him.
"John? What happened?" Jack asked him, wiping away tears gently.
John leaned away from him, glaring through his cascading tears. "You left me, Jack. You told me you loved me, and then you left. I was in love with you, I was faithful to you, which believe me, is not an easy thing. But I did it for you, because somehow, I fell for you. I fell hard, and you just let me fall. You know what the worst part is? I'm still in love with you," John got up from the couch and strode to the other side of the hub, making no move to stop his silent crying.

Jack was baffled by the sudden mood swing. "John… I thought it was for the best. You were in rehab, and I thought I was holding you back. I loved you, too, I really did."

John laughed bitterly through his tears. "Yes, Jack. You DID. That's the whole point, you don't anymore. How do you think that I feel, hearing that from the man I've loved for almost a decade? It hurts. But it doesn't stop me from loving you. Maybe I should leave," He walked slowly over to the Hub door.
Jack was on his feet in an instant, pacing over to where John stood. "Hey," He said softly. "I never said I didn't love you."
John looked up. Even through his grief and anger at the other man, John thought he was beautiful. The way his hair fell delicately into his pale blue eyes, which watched him with concern as he looked into them. "So you do, then?"
Jack smiled. "Yes. I always have, John. Even when I was gone, I missed you, thought about you daily. It hurt, but I got through it."
"Do you think… that maybe, we could try something? Again, even just for a bit?" John asked timidly, bowing his head in a gesture completely unlike the John that Jack had known.
Jack smiled at him reassuringly. "I suppose we could do that… after all, I do love you," he grinned.

John grinned back, and for the first time in years, allowed himself to hope.