my boyfriend of 2 years has an 11 year old daughter and an 8 year old son. In the last 8 months the 11 year old has a constant irritated attitude whenever i am around. I see these kids about 2-3 days a week at various times of the day and at various activities (ie: home, weekends, sports games, evenings, mornings)How do I approach her about this. Is it me? does she need to quit the attitude and treat me as kind as she treats other adults in her life or do i just have to walk on egg shells and assume this is a normal 11 year old behavior towards dads girlfriend?