Money could be the reason. Maybe she is angry at her husband. There is at least one 'good' reason. Maybe more.
Imagine letting your children and grandchildren know that you provided oral sex to a co-worker and did it in front of someone.
If she has a husband, he may want to get a paternity test.
I can’t imagine letting ANYONE know...much less my family.
But...maybe we are (thankfully) behind the times.