Don’t know whether or not to give puppy up

As title stated, I have a bully xl puppy. This is our second bully and our first was a sweetheart. Keeshond before that. I, personallly the son of the owner did not advocate for the breed, but my father did as our last bully was great. I have been tasked with primary watcher, as well as obedience trainer. She has done somewhat well, not terrible nor great, currently 13 weeks. I can see the behaviors she is exhibiting, her general personality and I can tell it likely won’t conform to our lifestyles, and mother agrees with it. My father thinks she may grow out of it, mild agresion/play, and lack of desire to please owners. Will she grow out of those certain instinctual behaviors that are somewhat hostile/aggressive/play, or should I give her back to our breeder. She is abkc certified, and the breeder wished for her back if any issues aroused.