Foreword This story is written in three versions, having the same, or very similar beginnings, which branch out into different endings. You are reading version Charlie.
In Version Alpha a mother and daughter compete for Bob's attention, and mom wins.
In version Bravo, the daughter resists her mother's attempts to separate her from Bob and she pursues him.
In version Charlie, neither woman wants to give up. Version Charlie has greater differences in the beginning than the other two stories. It is recommended that even if you've read the other versions, you read all of this one so the differences, and how they affect the later parts of the story, will be clear.