Related story:
I've sent my werewolf (current leader of the Moonwood Mill Collective) to fight Greg several times, and she got her furry tail kicked each time. Maxed fitness, apex predator, everything. Furry. Tail. Kicked.
Last attempt, same deal. Greg kicked her tail, then scampered off. Well, it was the first full moon for my pack leader's daughter, and when Greg scampered, poor teenage Elm was in the way and got her tail kicked as well. So I sent mama wolf after Greg again.
This time she kicked Greg's tail! Just needed the motivation.
P.S. When teenage Elm transformed back into a Sim, she was dazed and... smiling? I consulted this thread for wisdom on whether I should let her pursue him once she's of-age. It looks like he's coded not to be marriage/domestication material. In my head-canon that's because he'll always be married to Avelina, in his fuzzy little heart.