Note 567 — Chapter XV · CATULLUS.
Reading edition
The Caelius addressed in some of the poems is not M. Caelius Rufus, but a Veronese friend and confidant of Catullus—
'Flos Veronensum. .. iuvenum.'
Caesar, Bell. Civ. i. 2. mentions M. Caelius Rufus simply as M. Rufus. Cicero also, in his letters to Caelius, addresses him as mi Rufe, Ep. II. 9. 3, 12. 2.