if a girl is strong bold and mature,
it doesn’t insist that she is harsh or devoid of feelings.
it means that she had gone through enough ,
her tears have already dried,
her strength must have sprouted out from her tears,
if her cheeks doesnt blush at lame remarks,
it just infers the fact that she has faced the realities of life and is quite tired of acting as a damsel in distress and indeed realized life is no fairy tale ,there is no prince charming out there who would come on a horseback to save her.