pine for
Definitions
To suffer a mental and physical decline because of a broken heart or intense longing.
To yearn deeply and persistently for someone or something that is absent or unattainable.
Examples
After moving to the city, he began to pine for the quiet life of the countryside.
She spent her days pining for the return of her long-lost childhood friend.
It is unhealthy to pine for someone who has clearly moved on with their life.
Synonyms
long for yearn for crave hunger for thirst for ache for covet