No. It's not... It's not your fault. [More than anything, he says this with conviction he shouldn't have the energy for. Who knows where Keith manages to get it from even at a time like this, but he means it so thoroughly. You're already doing so much for him, never mind having to take the blame for anything else.]
Shiro. [For a moment he tries to breath, half closes his eyes to just lean into the touch, to let it center him as much as possible. He focuses on just him as Shiro said to. The walls around them could come down in his hazy mind for all that Keith cares just then.] This- it helps.