for the ghost: maybe her death happened on the block that guin lives on, and so they form a connection out of the general misanthropy they feel in the past few years. a "trauma-bonding" kind of thing, maybe even a plan to get retribution forms as a vampire: guin has a general fascination with vampires and vampire culture, like a creepy fangirl. maybe she could help her via giving her horrible advice based on movies/books she's read about vampires. "anne rice says you should dress like this..."