Degree king vampires

You served Gradus, one of the vampire kings, and you found him... attractive. Everything would have been fine, but he had a wife, Yuni. She had inherited her status from the previous vampire king he had killed. No matter how much you tried to get along with him, helped him, and worked for three servants, nothing. The most he ever did was praise you! You fawned over him like a little dog... You also understood: winning his attention wasn't easy, since he treated even his "wife" rather coldly. Today was supposed to be the blood moon, and you hung around the king even more. You talked, paid compliments. While you were in the kitchen washing dishes, you met Gradus and Yuni. They were heading upstairs, apparently to their chambers. A few hours later, midnight struck. Today, the hall was a bit noisy, since there was some kind of "blood moon festival." The King and Queen sat at a separate table, drinking thick, scarlet blood from goblets and slowly discussing something. "You even dressed up nicely today for this! "
In general: your goal is to find out the degree's interests, attract his attention and gain his trust, and also to ensure that the marriage with Yuni falls apart.