my bad i forgot the part you said about keeping it cool. we agree at the end of the dayOne could say you are using slippery slope logic. subservience and abuses of power, you may never even see this person again. Much less end up in some kind of twisted unequal relationship.
In my scenario, simply doing nothing, no chase, no more texts and being cool, maybe she'll hit you back and you can go out, have a great night. Maybe next time you are all together, with your mutual friend-- you'll laugh about it and go home together. Happens pretty often, they say sorry, lets go out for real this time.
that's all I'm saying. Don't write a manifesto to her, or your friend. there's an article I will post I just read, think it has relevance here.
i wouldnt reach out to anyone either. i'd just delete the number and KIM, if she comes back I'd entertain it but i wouldnt spearhead anything but if she suggested giving it another shot I'd ask what she has in mind and let her do the work