I think Aloha is right. But it may be more than that she doesn't really want advice - it may be that she feels undermined by the very fact that you do things differently from her.
I often do this myself (offer advice, suggest alternative explanations etc), to the point that a good friend once said that she never comes to me in times of relationship crisis because she knows I will make her aware of the other side of the argument rather than just say "b*stard". This hurt at the time, but at least it made me aware of it.
So, yes, doing the constructive listening thing may help. But (I think) so will perhaps asking her for advice on some childcare thing, so she doesn't feel she's the only one with problems. Of course you may do this anyway, but its a thought.