Oh gosh so much cool potential! Vanessa is all about made families and will probably unofficially adopt Red if they get close enough, which is easier in a trauma setting like they are! She'll definitely sense something underworld-ly about Red at some point. Not the first person she's met that can transform into a woof-woof (although she never gets to physically see it in canon, just sorta understands he got a monster inside, over time).