Collocations for betrayal - noun

personal | final, ultimate
His defection to the other side was the ultimate betrayal.

regard sth as, see sth as, view sth as
The business community regarded the measures as a betrayal of election promises.

~ of
a betrayal of his friends The decisions were a betrayal of everything my father stood for.

an act of betrayal, a betrayal of (sb''s) trust, a feeling/sense of betrayal