mental image

scene (in a TV show, play, etc.) / situation, scene

float / (of an idea) to present itself, come to mind

explanation

to explain

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

to come to mind; to occur to

(idiomatic) to come into mind, to pop into one's head