A Love Too Heavy to Carry

On the day of her stepsister's marriage registration, Marissa Eagan is dragged along to be a witness. She stands in the cold, waiting, her vision still adjusting after a recent recovery from blindness, only to witness a scene she wishes she hadn't seen.Her stepsister, Roxanne, walks in arm-in-arm with Joshua Colman, her husband of five years.Marissa's world comes crashing down. For a moment, she thinks her eyes are playing tricks on her. Then, the staff member at the city hall hands over a marriage certificate to the couple with a bright smile. "Congratulations on becoming husband and wife."If Joshua is listed as the spouse on Roxanne's marriage certificate, who exactly is the man on Marissa's marriage certificate?