YOU SAID:
I would love to want to need her.
INTO JAPANESE
私は彼女を必要としたいと思っています。
BACK INTO ENGLISH
I am thinking of needing her.
INTO JAPANESE
私は彼女を必要と思っています。
BACK INTO ENGLISH
I think that I need her.
INTO JAPANESE
私は彼女が必要だと思う。
BACK INTO ENGLISH
I think that she needs it.
INTO JAPANESE
彼女はそれが必要だと思う。
BACK INTO ENGLISH
I think that she needs it.
That didn't even make that much sense in English.