He says he cannot bear it; his stare burns with anguish so fierce it will not turn to tears.

“Oh, Cathy! Oh, my life! how can I bear it?” was the first sentence he uttered, in a tone that did not seek to disguise his despair. And now he stared at her so earnestly that I thought the very intensity of his gaze would bring tears into his eyes; but they burned with anguish: they did not melt.