I know what's going on
I know what's going on
Trying to find a reason that you right
Knowing that you wrong

from Sik Kid – Mockingbird Remix Lyrics on Rap Genius

Meaning

Sik Kid figures out that

Because his girlfriend is trying to pin the blame on him. Not admitting to the fact that she could be wrong.

and..
http://youtu.be/Nx3iVbt4OrI?t=45s

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