to betray, to sell someone out, to turn traitor, to double-cross / to disappoint

plotting to profit

to plot to profit

oneself / first-person pronoun: I, me (often shows the speaker's lower position in a hierarchy than the addressee) / (Kansai) you

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

(business) a company

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

myself, oneself

a photograph of oneself, a photographic self-portrait / (especially) a selfie