Every night since then, Korra did what she thought was right. What she KNEW was right.
The scars were up and down her arm now. She started wearing her air acolyte clothing more and more to hide her scars. When she wore her regular clothes, she made sure the clasps covered as many of the scars as possible, and she wouldn't move her arms much.
She thought no one had noticed.
She was dead wrong.
It was dark outside, probably about 1 am, and Korra was dying inside. She ran to the cliff and she cried, harder and harder. The dagger pierced her skin again and again. She slashed at it until there was no more room left where her arm band would cover anymore, and she just didn't care. She pushed harder and harder into the old scars, making them bleed even more. Her arm was covered, even though it was only a week.
She made sure that in the morning she healed the scars. She didn't want to. She wanted the scars to stay forever, make her feel even more pain. But she knew if Tenzin found out that she was going right back to the South Pole. So she did what she had to do.
Even so, the scars were still mildly visible, but no one would notice unless they looked hard.
She snapped back to reality, looking at the bloody knife she was holding. She cleaned it off with the inside of her shirt and turned to go back in when she was faced with something she didn't want to see like this. Ever.
Bolin.
"Hey Bo…" she said awkwardly to the earthbender who had this astonished look on his face. "How long have you been…" Korra couldn't look him in the eye.
"Korra…" he said, solemn tears in his eyes. Korra felt him softly grab her left hand and lift it to his chest.
She ripped her hand away when she realized what was going on.
"Just let me look," he said, very quietly. "I already saw."
She knew he did, but showing it hurt more than making the slits themselves. He grabbed her hand just as soft, knowing that he had to be calm with her.
He unclasped the clip on her wrists to take a look at what she had done. He started to cry, solemnly and darkly.
Korra fell to the ground. "I'm so sorry Bo. I couldn't stop…" She started to cry.
Bolin slowly let himself embrace her as she cried. He cried too.
"It's ok Korra," he whispered into her ear. "I have you now."