My partner's sister is older than he is and currently has no kids although is expecting soon. When he told her we were expecting our first, she did not speak to us for 9 months. It took her a while to come and see our baby and has only seen him twice since he was born. He is now 6 months old. She says that it was important to her to have the first grandchild in their family and that she has had emotions that she has not been able to handle. We are really confused and hurt about her reaction - any advice?