Nothing is known about Ava's husband life before the apocalypse except that he was married to Ava, and was expecting a child.
Ava's husband is among the dozens of refugees to arrive at the Rosarito Beach Hotel begging to be let in. After his mother-in-law pleads for her daughter to be let in, due to her pregnancy, Strand arrives and announces to everyone that they will be taken care of. The next morning, Ava is going into labor and while Strand refuses, the husband threatens him with a knife. However, Strand ultimately helps deliver Ava's baby.
After the Hotel gate was breached, and the Rosarito Beach Hotel was overrun, it is unknown if Ava's husband was able to escape, make it to a higher floor, or was killed.