~You are in my heart~

In a conversation today with A...she's 4....about family. 

A:  "Nana, I don't want you to get married!"
Me: "But, I am already married."
A:  "Why"
Me:  "Because Papa and I are a family."
A:  "Am I in your family?"
Me:  "Yes, you are a part of my family."
A:  "Because I am in your heart?"
Me: "Yes, A..., you are definitely in my heart!"