Н-66

ОСКОРБЛЁННАЯ (УГНЕТЁННАЯ) НЕВИННОСТЬ NP usu. obj or nonagreeing postmodif fixed WO

a person who presents himself as one wrongly offended, insulted: (put on airs of) injured (wounded) innocence

(portray o.s. as) an injured (insulted) innocent (portray o.s. as) a victim (an innocent victim).

Покритиковали тебя за дело, и нечего разыгрывать из себя оскорблённую невинность. They criticized you with good reason, so there's no need to put on airs of injured innocence.