R.G.
I know that it is very difficult to get a little one use to the idea of someone else coming into their space and staying. I just had my 2nd baby at the end of March my daughter was 2 at the time. She was very jealous even though we tried everything that people usually suggest such as having them help as much as possible, giving them their alone time, etc... Nothing was working she was still upset and jealous. About 2 months after the baby was born we went to visit family. My daughter has a cousin that is around the same age as her and she loved the baby. My daughter saw her cousin holding the new baby along with all of her other cousins and I could tell that the little gears in her head were moving. Then she asked to hold her sister after that time she has absolutly adored her sister. It just took someone else her size showing interest in her sister for her to realize that she was not that bad. Congrats on the new little one and good luck. You never know he just might suprise he and already love her from the time she is born.