I tend to be quite ruthless around women and this stance also loses me potential lays but ive always considered my time and valuable - so if it takes 2 weeks of chatting to get a girl in bed and 4 dates, i wont even begin, heck even if it takes 2 hours of chatting before i ca get a number i`ll bail
So i`ll always lay an initial foundation or as in with your case the foundation was already there so i would step up and ask her for a brief coffee/drink and if she denies then id bin her and move on

remember, you are BORG