"He didn't love her at all; he hated her."

Translation: Il ne l'aimait pas du tout, il la détestait.

[HarishAbbe3]

Il ne l'a pas aimée du tout. Il l'a detestée......can it be used.

[Hermione256]

I think the imperfect tense works better here, because it refers to a "prolonged hatred." The use of passé composé would imply a sudden action, in my opinion.

[SJD545641]

How come 'du' does not become 'de' after the negative?

[Jilly422858]

Because it's 'pas du tout'