understanding, comprehension / appreciation

misunderstanding, misconception

be under a misconception, mistake for, be misguided

entirely; all

everything, all

understand, comprehend / appreciate

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

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