Mediator Series by Meg Cabot?

Question:

Mediator Series by Meg Cabot?

I don't understand the last page of "Twilight"...

"The only thing I don't understand," Jesse was saying, his breath warm in my ear, "Is why it took him all this time."
"Your father," Jesse said. "His moving on, I mean. Why now?"
"Do you really not know?" I asked him.
He shook his head.
I smiled because I felt as if my heat might burst with joy.

Best Answer - Chosen by Asker: because she is so happy as to be with the guy she loves and him being here not understanding baout her father is the whole reasoning behind them being together