Rabbits are a food product. If he killed it humanely, I don’t think it would be “animal cruelty,” although it’s emotional cruelty to his ex-girlfriend.
[[although it’s emotional cruelty to his ex-girlfriend.]]
Precisely- Animal cruelty is when a person doesn’t feed an animal starving it to death, or beats the animal causing serious injury or death, or leaves an animal in a hot car until it dies etc=- killing an animal is not cruelty- otherwise deer hunting would be banned- however, as you point out, it was emotional cruelty, and theft of property perhaps