I have been on a few dates, slept with, and really like Girl A, however girl A never initiates contact with me, sometimes never responds to texts, and is hard to read.

Girl B initiated contact with me and we have been on a few dates and have only made out so far.

Girl B contacts me and says she is going to be hanging out with Girl A which surprises me because I didn't know they knew each other.

How should I handle this so I can continue to explore both options and not cause them both to ditch me, or cause potential drama between the two of them? Should I bring it up or wait until they say something?

UPDATE: ( if anyone cares ) So I take girl B on a mt. bike ride and she says she needs to go pick up her bike, so we happen to drive over to Girl A's house to pick it up haha. I'm sweating a little but I figure fuck it, just play it cool. No issues. Once we get into my car I simply bring the friend thing out into the open because they have to know, and if they don't then I would be a dick at this point for not saying anything. It turns out they both knew, both talked about and laughed about it and were okay with it. Anyway, so I figure I'll just pick one and see where it goes, so I take B out a few more times and it has now faded into nothing, honestly because I think it was a bit weird for her. So it looks like I'll start contacting A again and see if I can rekindle things. Spinning plates is the way to go, but try to avoid them knowing each other because it really does make things messy and stressful. I may have lost both of them.