Pavlik Morozov

In essence, betrayal is a change of ideals. A person is raised in a certain way, and then they realize that they were lied to (even if it was for their own good). What should they do now? Live a lie or change their ideals? This is where the question of betrayal arises. Of course, the opposite situation is also possible: a person lives in truth, and then they are led astray by lies, as happened with Judas.

betrayal is evil; as religious people believe, it is the worst of sins, for which, according to one author's fiction, a person rests eternally frozen in ice on the last, ninth circle of Inferno.

Wow, I recognize Dante's lines! But it's also worth mentioning Judas, tormented by Lucifer himself.