"You did not know anything about Mason's extracurricular activities… did you?" Diana asked. She had always wondered what was known to the people at that time and how much. She always wanted to ask Sophia/Gen about it but decided against it when she noticed that she was never comfortable in discussing the history. Sophia/Gen has always kept his memories and real emotions belonging to the past deep inside her heart and she never talked about it.
"Nobody did… not even Gen. I remember she freaked out when she find out later but…" Tyson told Diana. Tyson regretted hiding the truth from Gen himself but at that time… it felt right so he went with it.