Female American bully (Springfield)

I have a female American bully puppy.
12 weeks old.
Just got 3rd round of puppy shots.
My bulldog is not getting along with her.
No fault of hers she just wants to be a puppy and play and he’s a grumpy man.
Has been around kids.
Very good with them.
Very playful and loving.
One fifty to ensure a good home