Omne odium ex amore causatur quia nihil odio habeatur, nisi per hoc quod contrariatur convenienti quod amatur.
Every hatred is caused by love because nothing is hated save through being contrary to a fitting thing which is loved.
Amor autem et odium naturaliter quidem sunt simul secundum rationem, sed non realiter.
Now love and hatred are naturally simultaneous according to formal aspect but not really.