Hi disorderedsociety
It's good that she was honest with you. It sounds like you she was a mutual friend through your ex? Has she been dropped by your ex before? That said, did she sound interested in being friends when you got in touch with her?
Yeah, she was a mutual friend. I actually introduced them to each other a long time ago and my ex found her rebound through that circle. The ex dropped her as soon as she got with him.
This friend did seem genuinely sad about all of it and we talked about getting together to play some chords on guitar. At this point in my life, I need friends and a good support circle, and that's seriously lacking so this seems like a good opportunity.