That passionate, yearning look in Vane's eyes had aroused an excess of tenderness towards him which overwhelmed her.

She suddenly turned dizzy.

She swooned.
When consciousness came back she was in his arms.

He was as tremulous as she and was looking at her pallid face with eyes of terror--a terror which disappeared instantly when he saw life returning.
"My God," he cried, "I thought you were dead.

I'd have killed myself had it been so." Lavinia gazed at him mutely.