Her past is almost certainly hard to discover, as Leo Sunshadow destroyed some number of her memories, though no one knows why. One of the memories previously thought destroyed was her relationship with Hope Everthorn, from whom she got her signature lantern. However, the events of the fight at Shadowreck have made it clear she still has some fond memories of their time together.
She is not considered sane.
After the defeat of the Spawn of Shadowreck, she stayed for a week to let them celebrate her (and the other Phoenixborn) for the defeat of that Chimera.
Conjurations
Victoria's ghostly conjurations are the generally cute Shadow Spirit and the nauseatingly malformed Shadow Hound.