YOU SAID:

i am in love with my boyfriend, he is the best thing in the world

INTO JAPANESE

私は私のボーイフレンドと恋をしています、彼は世界で最高のものです

BACK INTO ENGLISH

I am in love with my boyfriend, he is the best in the world

INTO JAPANESE

私は彼氏と恋をしています、彼は世界一です

BACK INTO ENGLISH

I am in love with my boyfriend, he is the best in the world