I find calling celibacy or having a female-centred life "lesbianism" rather insulting to actual lesbians, erasing the "sexual" part of "sexual orientation"
I take your point, Catsmere, but when I read about female 'close friends' who were never parted, like the Ladies of Llangollen for example, I just assume their relationship was sexual, at least at some point. It wasn't acknowledged at the time because it was inconvenient to wider society, but the idea that two women who loved each other and spent their entire lives together 24/7 never, like, 'got it on', is hard to believe.
The discovery of the Anne Lister diaries disproved the idea that in days of yore women who loved women were just Romantic super-pals who had lots of chaste sleepovers. Disproved it with a capital D, in fact😛and I think that made it possible to read actual getting-it-on lesbianism into historical 'female-centred lives'. More likely than not. Or at least as likely as not.