She's down to step back now, if he ever got loud
She couldn't be proud of whatever she might do

from P.O.S. – Been Afraid Lyrics on Rap Genius

Meaning

She is ready to retreat from their evolving relationship in fear that he might turn out to be like ever other male in her life.

This part continues on to say that if he ever became confrontational she would defend herself to the fullest.

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