to suffer silently from jealousy or longing
嫉妬や渇望から黙って苦しむ (shitto ya katsubou kara damatte kurushimu)
"He’s been eating his heart out since his ex got engaged."
"彼はイーティング・ヒズ・ハート・アウト 彼の元恋人が婚約した後からずっと。" (Kare wa eating his heart out kare no moto koibito ga kon'yaku shita ato kara zutto.)
a relationship full of arguments and conflicts
to be experiencing a period of bad luck
at risk; in danger of being lost
to excite or motivate someone
used when something hoped for did not happen
to improve one’s skill or knowledge
