everything

justification, rationale, warrant / self-justification, presenting one's own deeds or words as reasonable

to justify, to rationalize

a reason / a motive

action; behavior

to act

right, legitimate, allowable

legality, justness

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

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