" I know I should never have taken your blood--it was wrong--but it was wrong because I did not tell you what could happen. I knew you were my true lifemate, and my existence could not continue without you. I should have had more control. For that I will pay through all eternity, but it is done. We cannot undo what has already been wrought.”
Mikhail finished new poultices, placed them precisely over the wounds to seal them. Her fear, her revulsion, her sense of betrayal, beat at his insides, making him want to weep for her, for both of them.
“What I did with you was not the same thing as using a human woman for sex. We did not just have sex; my body recognized you as my lifemate. There was no way I could ignore the call. I would have had to choose to end my life. The ritual demands the exchange of blood. It is not feeding hunger, it is purely a sensual exchange, a beautiful, erotic affirmation of love and trust. The first time I took your blood, I inadvertently took too much because I felt such ecstasy. I was out of control. I was wrong to tie you to me without your understanding of exactly what it all meant. But I allowed you to make the choice. You cannot deny it.”
Raven stared up at his face, reading the sorrow in his dark eyes, the fear for her. She wanted to touch him, to ease those lines of strain, to reassure him that she could handle what he was asking of her, but her brain could not accept what he was saying. “I would have chosen death, if you had allowed me to go with you.”
He pushed the hair from her face with gentle, caressing fingers. “The only way I could save you was to make you one of us. You chose life. "

― Christine Feehan , Dark Prince (Dark, #1)