wow, that's so meaty, i love it and i am sorry i ever tried to dissuade you from it! jane is fairly spontaneous because she was raised in a privileged upbringing that afforded her a safety net. her personality can come off a little more irreverent and jaded and eclectic, but she's endlessly curious about new people, new experiences, etc. i kind of see her having a 90s cool alt girl vibe (grungy aesthetic, dry know it all sarcasm, etc) in a sense, but like .... now. she can also seem sort of pretentious because she's big into capital l literature given her background but she loves pop culture and lowbrow things so much. if you haven't decided on a neighborhood, they could maybe be neighbors and do yoga together? she could help chelsea at unwinding time.