Taralynn, my son is also 6 & Giselle is almost 1. She, too, was (& sometimes still is) pretty rough with him.....lots of nipping, jumping, general roughhousing. She is starting to outgrow it a bit, but I never leave the two of them unsupervised & I started having him feed her, let her out when she needs to go out to potty, give her treats for sitting, lying down, etc., and if we take a walk he & I go through the door first, & then her. This helped establish that he is a human, not another puppy. He also has certain rules to follow with her, such as no running past her (she still chases him) & keep his head above her at all times. They still have their moments, but it is starting to morph into a much calmer relationship. Good luck!!