Portia de Rossi Portia de Rossi

Portia de Rossi is working on a memoir that will detail her struggles with eating disorders and her decision to come out as a lesbian.

The former Arrested Development star will also write about her marriage to Ellen DeGeneres, whom she wed in 2008.

Portia de Rossi: Marriage "completely changed my life"

Atria Books will publish the as-yet-untitled memoir Oct. 19.