That sounds just like my two! Angus is 10 1/2 and Roxey will be 10 mos.! Angus wasn't the Alpha with our Chow and he isn't now either. Roxey does just like you were talking about. She tries so hard to get him to play, and she acts so mean! But she really is playing, she don't hurt him, just really makes Angus mad
Sometimes she just won't leave him alone, & we have to break it up. So I know exactely what your talking about & I'm glad to get some feedback too!