1) H.I.H. Princess* Allura was evacuated early in the fighting (for obvious strategic and morale reasons) and got separated from the Consort.

2) She was married to the consort, it was absolutely arranged and political and she loved them, and they're blue-skinned space elf nobility from a planet that wasn't the throneworld. Other than that, go nuts!

*Your choice whether to go by "Princess" or "Princeps," by the by; the second is the gender neutral term.