I feel like world's worst step mum. The last few months my step daughter has been so challenging with her behaviour (she's 10). We knew that when we were trying for a baby she would find it hard to accept because she's always had me and her dad to herself and she finds it hard to spend time as a three. She prefers me to herself. Anyway IV snapped at her for her recent behaviour but tonight she flipped out that her dad sat next to me and she was always left out (which is absolutely not true, we have been together over 7 years and we have never made a deal about kissing or hand holding in front of her, she's always come first). Shes cried for an hour saying that I'll love my baby more than her and she's left out of our family which breaks my heart. Tonight I stayed calm because clearly there's a big issue and I don't know how to reasure her. IV included her in everything , IV got her a big sister bag for when he's born with some little gifts, my family have been brilliant in making sure she knows she's loved and special. Shes breaking my heart, IV wanted a baby for so long but not because she's not mine because I want to extend our family. Has anyone got any tips on what else I can do to stop her thinking she will be second best? I never want to loose our bond and I am terrified that I actually may feel different about my own baby no matter how much I tell her I won't !