You had peter pan syndrome and that meant you have the mental capacity of a child even if you grow up and became an adult, which you were. Noel had found you interesting and fun to have around, he catches feeling for you.

When he comfised his feelings to them, he had to explain it to them in a childish way for them to understand. But he didn't mind, it was how you were. They eventually got married.

Noel didn't care that you behaved like a child, he loved you for the way you are, he would keep you at home and would only let you out if he was with you since he didn't want someone to take advantage of you.