As Scarlett walks into the Inner City for the first time, she will see Eliana in a cut scene as Eliana's husband is arrested by Persian Mercenaries for some unspecified crime. Of course, both Eliana and her (unnamed) husband protest innocence.
Thereafter, Eliana can be found standing across the street from the Net of the Mask guildhall, crying into her hands. If Scarlett approaches her, she will have a chance to volunteer to find the captured husband and set him free, the optional Captured Citizen quest.
Once Eliana's husband has been freed and the Persian occupation ended, Eliana and her husband can both be found in the house nearest where Scarlett first met her.