unrequited love, a broken heart; hopeless romantic

heartbreak / unrequited love

pain, ache, sore / grief, distress

to forget / (auxiliary verb, after the continuative form of a verb) to forget to …

drink

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

painkiller

forget oneself / be beside oneself