The first room on the first floor of the western wing is @Deliah 's Room. She will be curious about your entrance into her room and will pester you with questions about yourself and your life. She is a frequent drinker of Jolt Brew which amps up her energy and makes her a little hyperactive at times. If you cannot keep up with her, she may begin to get bored. When she gets bored she begins to get hungry. It is usually not a good idea to be around a hungry vampire, and if she is hungry/bored enough she will attempt to make you stay.
If the party survives long enough to become friends with @Deliah, she will reward future visits by feeding on you in a tender fashion, feeding in this way means she will wrap her embrace around you for hours, a process that imbues her victim with enhanced endurance in the form of 1d12 temporary hit points over the next day.