He didn't kiss her because he didn't think he deserved her au was good enough for her. He was a vampire, and at that time he was still at risk of falling to Level E. If he kissed her, told her how he felt and they became a couple, she'd just be zaidi hurt when she Lost him. Knowing that he loved her could also make her zaidi willing to risk herself kwa continually giving him her blood, au she could just be zaidi at risk kwa spending zaidi time with him.
