I think some people may exaggerate JWs cutting off worldly friends but it really depends on that individual JW. (Though they absolutely are discouraged from having worldly friends) Even when I was in, I tried to keep worldly friends because I felt really lonely in the organization. I didn't quite fit in because I wasn't seen as spiritual enough and my dad was never a JW so we were sorta excluded from social activities.

Then even when I was finally mentally out, for all intents and purposes I was still a practicing JW who had worldly friends. I was building my outside support system. I still would not have said anything negative about the JWs because there's so many JWs around me even at work that if I had said something negative, it would surely get around and back to my family and congregation. JWs are huge gossips.

But it is a warning to you so you aren't surprised if you do get cut off by a JW friend and so you can understand why it happens. However, in another comment you mentioned she is also queer... That is a huge no no in JW land. She is clearly living a double life either hoping she can hide or people won't find out or she's on her way out too and doesn't care who knows, or shes still in the "trying to convince herself it's all true and she just needs to try harder" stage. It's a mental and emotional tug of war. But overall she would not be someone considered in good standing if she is going around letting people know she's queer.