So, considering Victorian contexts, even if during the fin-de-siècle period where there was a (slight) loosening of gender roles/relationships, it’s no surprise that Swinburne’s poetry is densely symbolic, much of which is used to “veil” sentiments or desires not condoned by Victorian norms and legalities. Likewise, Cooper and Bradley employ a male pseudonym to veil the authors’ relationship, which was not only transgressive as a lesbian partnership but one that was also incestuous (indicated in the authors’ bios). Borrowing from Sapphic tradition, as grounded in Sappho’s fragmented texts (because fragments are all that survived antiquity) and the corresponding myths constructed around a woman poet about whom very little is known, this also provides “Field” with some authority for establishing a separate sphere comprised wholly of female desire, companionship, and love. In this sense, yes, Cooper and Bradley reinforce the ideology of separate spheres but in a way that subverts and redefines it.
Dante Gabriel Rossetti, Proserpine, 1874