[Keith knows he's pushing that edge too, feels the water in his eyes even though it never spills over, even though his breathing is shaking like he might as well have been sobbing this entire time. It's strange to feel that building upset threatening to spill over and hold it back by the sheer weight of every other instance in the past few years that has tried to throw Keith over that edge and been denied.
So instead, he tries to calm himself, focuses on Shiro, as his hand absently starts shifting along his neck and the end tips of his hair, not daring to say words even as they start to come together again in his mind. So much he wants Shiro to know, and so much that could undo them both.
Behind Keith this time, the lights try it for him: No matter what happens, I need you.]