overbearing and abusive patient

nurse

difficult, hard / terrible / serious, grave

very, greatly

disaster / difficulty / dreadfulness

nursing

to nurse, care for

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