Oh how I love this. Girls were always extremely mean to me growing up. Now I almost cry every time my son steps onto his bus. I'm terrified for my children to have to endure mean people. And I hope they never have to. Be nice! Children learn by example.
Do not let your relationship turn into one person only being dominant/submissive-share each role, it will turn into an unhealthy relationship otherwise. Use "I see it differently" in difficult relationships.