I'm projecting on persephone that she has OSDD, Despoina is a defense mechanism, she rarely fronts and is mostly there to hold trauma and complex emotions that stresses persephone. but after persephone gave up her powers, persephone has been using Despoina's instead, by accident (so winter and snow).
This has caused a break down of inner walls along with the stress persephone is facing so that Despoina now can front. Despoina is at odds with persephone, and doesnt agree with her actions, but wants to protect her at all costs.
with her new found freedom, shes ready to try confront those who have hindered and hurt her (as well as confronting perse's mistakes and trying to rectify past misdeeds)