Where were you talking to them? At the club or something? It sounds like that could have been a possibility. Anyways, there are tons of options you could have used here.
You say girl A seems to like your teasing (IOI), while girl B says your mean. Twss mentioned a key point, it is about her delivery. If she seems really offended chill, however could be a shit test.
An option you could have done would be isolating girl A from B. Isolating girl A gets you that much closer to #/F close; assuming you haven't got the # already. Isolating her from her friend shows her you know how to take control. I am pretty sure this is a DHV.
