She needed to have his blood if she wanted to survive. He gave it to her mainly to help her survive since he had drank so much from her and her current condition wasn't so well. She might die if he didn't help her. But with his blood... she was gradually becoming more bound to him as the blood would enhance her but bind her to him at the same time.<br/><br/>He moaned a little as she began to taste his vampirc blood, it seeped into her bonding with her as she could feel a lot better now. It was also making her more and more attracted to him.