Alma is can be found in the Chantry of our Lady Redeemer in the City of Amaranthine.
Involvement
Alma is found praying for her husband's return. Attempting to talk to her will open the Till Death Do Us Part quest.
Once the relevant notes have been found, The Warden-Commander will find Alma's husband's corpse hanging from the ceiling of a house he wished to restore for them. His suicide note reveals that he killed himself as he believed he was unworthy of his wife. Alma will run off, distraught.