Sammy - just because she says she isn't maternal and doesn't want children, I bet she will change her mind in the future and will then behave like she's the only one to ever have a child!.
I speak from experience of a friend of mine - not baby related but I can remember when a friend and me were talking about mine and my OH's wedding - in particular the friend I was talking to was an usher at our wedding and had played a pretty special role in that he pushed my Dad in his wheelchair as he escorted me down the aisle - Dad was terminally ill at the time. My friend was saying what an honor it had been to do that and that he'd found it really hard to contain his emotions.) It was that aspect which we were talking about. A female friend turned round and said very loudly and very bitterly "Urgh, wedding talk......BORING!" I was absolutely flabbergasted! I knew why she didn't like anyone talking about weddings - it's because she was jealous. She made out she didn't want to get married but everyone knew that she did and her OH just hadn't asked her.
This is the same girl who had said things like "I don't need a piece of paper to tell me I love him" and "Spending all that money on a wedding.....what a waste...I'd rather spend it on my house or something."
Funny how when her OH did propose on NYE, she was on the internet that same night looking at venues, then organised an expensive full blown wedding at a Gothic Hotel on the side of a Loch in Scotland and spent so much time talking about weddings constantly, and how she wanted something "DIFFERENT!" and would subtly (and sometimes not so subtly!) criticise what I and her other friends had done at their weddings. She really did become Bridezilla! She was a nightmare!
Isn't it funny the way people behave when they are feeling jealous!
We all feel jealous sometimes about different things, but I accept it is my issue and try to make sure that I am happy and enthusiastic for my friend however much it hurts. Why can't all friends do the same.