Selina now found herself a multiverse heroine, part of the NSA’s payroll, and still wishing to lead a life as a human being, esp. one who was 5y.o. and female. Naturally she had many hackers helpers, admirers, emulators, parodiers, remixers, critics, etc.
One note was that Selina blew some dandelions at a summer camp and was nicknamed "Puffy". She later shared an observation that the human mind had a limited immediate capacity of memory ( see https://shlomifish.livejournal.com/1991.html ), which combined with the computing concept of "a buffer" nicknamed her "Buffy".
( My "Selina Mandrake - The Slayer (Buffy Parody)" where the titular protagonist turns 18 in early 2012, can be thought of as an inadversarial reboot/remake. )
She, Samantha Smith, and Joss_Whedon became good friends, and colleagues.