The Black Sheep of a Cool Family
This person’s wife was adopted by her stepfather at just four years old, and since then, she only had one father figure in her life. The bio-dad was nowhere to be found, and judging from the story, she preferred it that way. However, the OP’s wife did end up meeting their bio-grandma, which is pretty neat.
In fact, the entire family was cool, according to the OP’s wife. The bio-dad was the black sheep of the family, so, of course, he’d want to stay away from family as much as possible. The OP and his wife even got to stay at her bio-grandma’s place once.