Sharon doesn't say it aloud, but her line of thinking is in keeping with Loki's. So long as they retreat, they should be left alone. And she'd never held out much hope that they would find Natasha or the others. And yet...

She turns toward the barrier for several seconds, her hands on her hips. The urge to keep going, to keep trying to escape... But no. It would be suicide at this point. She needs to be smart about this.

She turns back and hefts parts of one of the robots. "Conserve your energy, Loki. You've done... We're grateful for what you've done so far. Stark, you okay to help? We've got to walk... How far?" She looks to Loki to check the distance. The question is twofold. She isn't just curious for the walk back, she wants to know to gauge the distance for how far they have to go if they try to escape before they reach the barrier.