He forgets that they're hiding out in the sewer underneath their destroyed city when Korra sloshes away from them, shooing away Naga and Pabu, shoulders shaking (though she tries to hide it). "I'll be back." she calls back to them, voice cracking.
Mako, Bolin, and Asami watch her leave. Asami lifts her hand to her mouth, "Go after her, Mako." she tells him then, green eyes flicking to his. She's not goading him, she's not taunting him or giving him hell for the kiss. The only thing he can see reflecting back at him in her eyes is worry, and it probably matches his.
Mako nods, slips away from Bolin and Asami, and trudges down the sewer after her. He finds her leaning against the wall, arms wrapped tight around her middle. She doesn't say anything as he falls against the wall beside her. She ignores him, eyes closing.
Mako fidgets in the silence, "What's wrong?" he asks.
Her eyes crack open, "What isn't wrong, Mako? The city has fallen to Amon, the United Forces won't be here for days, I have no idea where Lin or Tenzin are, and—and I'm the Avatar. I'm supposed to be up there, fighting for those people, defending them. And I'm down here cowering in the sewer drains."
Without thinking, Mako slides an arm around her shoulder, pulling her tight into his side. She curls against him, teeth biting into her lower lip. "But you can't come back swinging later when the United Forces and Tenzin get here if you go up there now and fight. You have to be smart about this, Korra. I know it's hard, believe me, I want to be up there as much as you do, but we've got to wait. You've got to follow Tenzin's orders on this one." he says all of this as gently as he can, and Korra nods.
"I know." she sniffs, "I just want to kick some Equalist butt."
Mako ducks his face into her hair, fighting a laugh. They stand like that for another few moments, and the Korra pulls away, wiping a hand over her eyes. "We should get back to Asami and Bolin." she says, but she gives him a small smile, and he knows she'll be alright.
On their way back to his brother and Asami, she slips her hand into his, and gives his fingers a squeeze. He squeezes hers back tightly, and their hands stay clasped together until they reach their friends.