I have something similar with laezel, after
encountering the gith group by the bridge (I decided to fight and kill them)
I went back to camp and asked her to wait for me at the camp.
I can no longer interact with her, she is not selectable to talk to so I can never have her in my group.
I tried killing her and I can "help" her once she is downed, but I am still not able to talk to her