请问下面这段对话是什么意思?谢谢

While a man was dying, his wife was maintaining a candlelight vigil by his side. She held his fragile hand, tears running
down her face.
一个男人即将死去，他的妻子在他身边用烛光为他守夜。
她捧起他的虚弱的手，眼泪滑落她的面颊。
Her praying woke him from his slumber. He looked up, and his pale lips began to move slightly.
她祈祷他能够从熟睡中醒来。
他睁开眼，苍白的嘴唇轻轻地开阖。
"My darling," he whispered.
“亲爱的”他小声地说。
"Hush, my love," she said. "Rest, don't talk."
“安静，亲爱的，”她说。“休息一下，不要说话。”
He was insistent. "I have something that I must confess," he said in a tired voice.
他继续努力。“有一些事情我必须向你坦白，”他疲惫的说到。
"There isn't anything to confess," replied his weeping wife. "Everything's ok. Go to sleep."
“你不需要坦白任何事情，”她的妻子哭泣着回答。“一切都过去了。睡吧。”
The man blurted out: "No, no, I must die in peace. I...I slept with your sister, your best friend, her best friend, and your mother!"
男人突然说到：“不，不，我必须平静的死去。我。。。我和你的妹妹