Betrayal of? betrayal on?

I was browsing through youtube when i happened upon a video by the name

"betrayal on kerrigan"

The video was about a character named 'kerrigan' being left behind in the battlefield.

Anyway i was wondering if the title shouldn't have been

"betrayal of kerrigan" instead? I've never heard of 'on' being used with 'betrayal'

but then again i haven't heard betrayal being used all that much either...so please help me^^