Is anyone else's child jealous of their new baby sibling? My 2 year old is really jealous of her baby sister and it's getting bad. She tries to hit her alot and tries to be mean to her and acts babyish so we can pay attention to her. Me and her dad give her attention too, but anyone who pays attention to the baby, she doesn't like it at all. I'm worried she'll become more resentful and aggressive to her sister. I know it's natural bc they're no longer the only child and a new baby has mom and dad's attention, but is there any way i can make it better?