Natasha's eyes widened when Clint kissed her. No! He didn't know how she felt about him... She thought she had done so well hiding away those feelings. Then again, Loki had picked up on them. She kept her eyes open and refused the urged to kiss him back. She grunted as he stabbed her arm, the blade biting into her skin. She glanced at the blade in her arm, the blood oozing out from under it and slowly soaking her arm. Crap, he must have hit an artery. If he removed the blade, it wouldn't be too long time she died of blood loss. 

She could feel blood trickling down her face and cheek as she stared at Barton. She moved her arms to the one hand was higher. She grabbed the chain of her handcuffs lifting herself up before she managed to send her knee into his temple. She leaned her head back for a moment, breathing. When she looked back up at the door and Barton. Her vision was getting woozy, her head spinning. She wonder if she got a concussion from when Hawkeye hit her. If she had, closing her eyes was the worse idea. However, she couldn't stop her head from drooping and her passing out, hanging there.