I can vividly remember this book from when I was a child but can't remember the title of it. It was about a rabbit/hare called Rosie and she was jealous about her mum having a new baby. If I remember rightly she refused to hold her new brother, until her feelings change and she loves him in the end. I have a feeling it might be part of the 'Guess how much I love you' book range by Sam McBratney due to very similar-looking illustrations and soppy/sentimental narrative etc. but could be wrong. Any help with this would be appreciated