i just got my new blue pit, she will be 9wks in four days, she is super sweet and loves to sleep and play, the only thing is she seems to take to my GF better then me, but i want her to know im her master, i walk her, feed her, play with her,etc. but all my GF has to do is call her name and she gets really excited and when i call her name shes a bit hesitant...ive had pits all my life and this is the first time this has happened, am i doing something wrong? and how do i let her know that im her master?