Achilles friends were Patroclus only Patroclus from the
illiad
View page
I don't think Achilles stole anything from Patroclus. Patroclus
stole Achilles armor and war it into battle. The Trojans thought he
was Achilles and killed him.
View page
Achilles sought revenge for the death of Patroclus. The death of
Patroclus was Achilles' main motivation for his killing of
Hector.