Answer:
She is has experienced a deep love that her cousin has not yet experienced.
Step-by-step explanation:
It is likely that Janette Alston has experienced a deep love that left her sad. We can assume this based on her reaction to the conversation. When her cousin argues that Janette knows nothing of love and passion, Janette does not give a straight answer. However, she is clearly bothered by the statement, and seems affected by a memory. It is likely she has experienced love and loss, but her cousin does not know about it.