YOU SAID:

He was everything I ever wanted in a boyfriend.

INTO JAPANESE

彼は私が今まで彼氏欲しかったものだった。

BACK INTO ENGLISH

He was everything I ever wanted my boyfriend.

INTO JAPANESE

私は今まで彼氏が欲しかったものだった。

BACK INTO ENGLISH

I was what I wanted my boyfriend ever.

INTO JAPANESE

私は私が欲しかったものは彼氏今まで。

BACK INTO ENGLISH

I was what I wanted my boyfriend ever.