is one allowed to answer one's own question?
i definitely think that,as written,vicki was supposed to be too much the guileless waif to deliberately lead on barnabas.
but had these been "real" people the fact that she didn't pick up on his obvious attraction to her was naive in the extreme.
the fact that no one besides burke,willie and julia didn't catch this either is pretty ridiculous.again i think that,as written,vicki,liz,carolyn and the rest were supposed to see barnabas as a charming older gentlman with a harmless affection for a young girl(practically a family member)with a similar interest in local history,old houses,antique gowns,music boxes,embroidered handkerchiefs and so on.
b.t.w. gothick i just adore the scene you mention where julia tries to let vicki know barnabs' interest in her went beyong simple friendship.this was in one of the first color episodes and i remember finding the sight of vicki in her orange sleeveless to be just dizzying.