pine away
waste ***
languish

She pined away for what she'd lost, a life beyond her prison.

She's no use to me if she pines away and dies of a broken heart.

She could not bear to swim in it any more, and began to pine away.

"Certainly not enough to waste pining away over a guy."

She pined away and died less than two months later of consumption.

"I'd rather be fighting a war than sitting home and pining away."

He pined away in a country where they said "Well played, sir!"

As if she'd been pining away behind some glass wall waiting for her prince to come.

"Did you think that I would pine away for love of you?"

Did you think I had been pining away for her all these years?