Betsy has joined the X-Men during one of their most dangerous years: 1987. Want proof? It's the same year Michael Jackson attempted to buy the Elephant Man's remains. (So at least we know the goofiest stuff isn't simply going on at Earth-616.) Altho' she's joined the X-Men, she's still of an uncertain mind about whether this is what she wants out of life. I'm guessing her very proper English lady's boarding school's career counselor suggested instead that she go into a career of being one of the Bright One Things of 1980s England, lolling about, drinking designer cocktails and complaining about how dreary everything is. No one ever would have predicted that the art of complaining about your lot in life was to be refined to the nth degree by the angsting angstiness of Chris Claremont's scripts. Now, towards the end of '87 there's really no doubt where Psylocke's energies and loyalties lie: as a charter member of the Wolverine Rules OK Club.
Panel from Uncanny X-Men #224 (December 1987), script by Chris Claremont, pencils by Marc Silvestri, inks by Bob Wiacek, colors by Glynis Oliver, letters by Tom Orzechowski