I know that this particular storyline is a season old, but I've had this started and not finished for a long time! It was about time I busted my butt and finished it. Hope you enjoy :) !

A Partner's Promise

Clarke Griffin stood on the balcony of POLIS looking down on the city. It was filled with grounders and sky people slowly reuniting with loved ones that had been forgotten. ALLIE was gone as were the chips that controlled them. While that was a good thing it also brought every memory, those good and bad, back. Clarke was happy that they'd managed to save everyone with very few casualties, but a weight was still sitting heavily on her shoulders. How was she supposed to tell all these people that the world was going to end for good this time in only 6 short months?

"Clarke?" Bellamy Blake, her partner, stepped out onto the balcony. He came over to her and rested his hands against the railing, his shoulders slumped in defeat.

"You couldn't find Octavia?" Clarke asked of his younger sister.

"No. She must have gone somewhere in the city," Bellamy shook his head. "I don't know what to do Clarke. Every fiber in me wants to go after her and protect her. Make her talk to me. But..."

"You know that's not what she needs," Clarke finished the sentence for him.

Bellamy nodded. "As much as I hate to admit it she needs space and time. I don't know if she'll ever forgive me, but I know I can't keep going on like this. It hurts too much every time she pushes me away. Maybe in time she'll be able to be around me at least."

Clarke's heart broke for the man next to her. They hadn't always seen eye to eye, but she'd always admired him. Especially his fierce love for his sister. She'd never known that kind of bond. She gripped his bicep and gently squeezed it in silent support. They stood in silence watching the people on the streets below.

"What are we going to do Bell?" Clarke whispered in horror, knowing she didn't need to explain to him what she was talking about.

"I don't know," Bellamy replied.

"They look so happy. What kind of leaders would we be if we told them now?"

"Do we have to tell them at all?" Bellamy turned to Clarke, hope in his eyes.

Clarke shook her head. This all seemed to be too much. She suddenly felt drained of all the energy she had left as if the weight of all the decisions they had to make was forcing her surrender. She rested her forehead against his chest, intending to do it only for a moment as she rested her eyes. Instead she felt her body falling. Bellamy caught her in his arms right before she hit the ground.

"Clarke? What's wrong?" Bellamy scooped her up in his arms. Her head came to rest against his shoulder as her eyes remained closed and her breathing seemed to be shallow. He quickly went back inside where all the others, both grounders and sky crew, were celebrating and reuniting with loved ones. "Abby!"

The room had grown silent at Bellamy's distressed call. Clarke's mother, Abby Griffin, turned from where she'd been talking to Marcus Kane. She immediately rushed to him at seeing her daughter unconscious.

"What happened?" She asked as she reached out to Clarke.

"I don't know," Bellamy replied, still keeping her tight in his arms. "We were just talking and she fainted."

"Marcus move Ontari's body please. Bellamy put her here for me," Abby replied gesturing to the nearby table they'd used for Ontari.

Bellamy gently laid her on the table, making sure to stay close. Abby examined Clarke and with each passing moment his heart beat faster and faster. He needed her and she wouldn't leave him this time. No matter what he had to do.

"Abby what's wrong?" Bellamy demanded.

"I was afraid of this," She stood back from the table and met his worried eyes. "Her body is reacting negatively to Ontari's blood. Whether that's because it's the wrong blood type or due to whatever factor makes their blood black I'm not sure. But that's the cause."

"What do we do?" Bellamy asked.

"She needs a blood transfusion and this time not like Mount Weather," Abby replied. She turned to the quiet group who'd gathered close. "Does any one know their blood type? O negative is a universal donor."

"Me," Bellamy immediately jumped in. "Use me."

Abby nodded and reached for her bag to set it up. Kane found another table and dragged it over next to the one Clarke laid upon. Bellamy climbed up on the table and laid down. He glanced over to Clarke's extremely still body and the fear crept in again. The need growing inside of him for this woman was overwhelming. He reached and grabbed her still hand, twisting his fingers through hers.

"Hang in there Princess," He whispered.

"You're going to feel a pinch Bellamy," Abby said as she stepped between the tables and held a needle to his arm. She didn't seem to notice or care that his hand was wrapped tightly in her daughters' hand.

Bellamy barely felt the pinch of the needle as it slid in his skin. Abby did the same to Clarke and finally looked over to him.

"You ready?" She asked.

"Do it," Bellamy replied.

Bellamy watched as his blood began flowing into Clarke's body. He listened as Abby explained he might start to feel nauseous or light headed and that it might help if he slept. Bellamy tried to keep his eyes open, but after a few minutes he closed them, making sure to keep his hand tightly clasped in Clarke's.

XXXXX

Clarke woke up with a stiff back and pounding headache. She tried to sit up, only to find herself being held back. Her hand was wrapped in another big, warm one and she had a needle stuck in her arm. Bellamy was on a table next to her and his hand was gripping hers. But his eyes were closed.

"Bellamy?" Clarke started to roll to her side to reach for him but was stopped by a hand on her shoulder.

"Clarke be careful," Abby pulled Clarke back down. "You just had a transfusion. Give your body time to heal."

"Mom what's wrong with Bellamy?" Her concern for herself had gone out of the window the second she'd seen how still he was.

"Nothing honey," Abby smoothed Clarke's hair away from her forehead. "He's just recovering. He saved your life."

Clarke looked back in his direction and smiled. He'd saved her life more than once and in more ways than one.

"Just rest. I'll come check on you later," Abby pressed a kiss to her forehead. "There's a lot of injured people and Jackson and I need to get started."

"Thanks mom," Clarke watched her mother leave the room with Jackson and glanced back at Bellamy. She squeezed his hand, hoping to see him open his eyes. She felt his fingers twitch first, then his big brown eyes connected with hers. "Hey."

"Hey," His husky voice cracked and he smiled. "Are you ok?"

"Yes. Thanks to you," Clarke smiled back.

"You're welcome," Bellamy's smile faded and he sobered quickly. "I need you Clarke. It sounds selfish, but I can't do this, any of this, on my own."

"I know," Clarke replied. "I'm not going anywhere."

"Promise?"

Bellamy's vulnerability was clear in his eyes, something he wouldn't show anyone else other than Octavia. She squeezed his hand and pressed a kiss to the back of it. "I promise. You're stuck with me I'm afraid."

The relief Bellamy felt was instantaneous. Realistically he knew neither of them could promise that, not down on the ground. There was danger everywhere, but he knew as long as he had her by his side he would always be a better version of himself. The kind of man who would be able to save the people he cared about.