我想说先生我是你最爱的人
[wŏ xiăng shuō xiān shēng wŏ shì nĭ zuì ài de rén]
Translated as 'I want to say Mr., I am your most beloved one', expressing deeply heartfelt declaration of love, wanting the addressed 'Mister' to understand that the speaker views themselves as the most loving partner or person in the other's life.