Wow, @Cobalt_is_cool that sounds like a very tricky situation. Especially considering it was your friend who told her, and not you.
I think situations like this are always a bit awkward, and it might take some time before things settle down. It's hard to know how she might feel about the situation unless you talk to her though I suppose. Do you think it's worth taking the time to have a conversation with her, to clear the air? Then maybe you can work together to decide whether you can continue your friendship, whether she might need some space, etc. and let her know your feelings.
I can imagine it's all pretty confusing and it's okay to feel out of sorts for a while.