傻瓜你知我爱你笨蛋我知你爱我
[shă guā nĭ zhī wŏ ài nĭ bèn dàn wŏ zhī nĭ ài wŏ]
It's like saying 'You, silly, you should know I love you; me, the fool, knows you love me too.' This reflects an intimate and endearing expression between loved ones with some self-deprecation humor.