Isabella looks at her father, whose face is lit up with happiness. And she knows, her father will finally be very happy with the love of his life. She can't help but smile seeing him like this. And she knows he's waiting for her to finally accept Susan, which is why he confessed this to her.
"My real mother did that for me without even knowing me?" she now asks emotionally, feeling that it's true, she has a mother who loves her and was willing to risk her life to save hers.
"Yes, my daughter!" Santiago answers, letting tears roll freely down his cheeks without hiding them. "Your real mum...