R.T.
I think considering the short time you have known her that you have done a lot to prove to be a true friend. When I was getting divorced I had a friend who I would call when I was feeling sad or angry or one of the many other emotions I felt when going through that. I still say I don't know how I would've gotten through it w/out being able to talk to her about what I was going through.
Sound advice, a little help with the kids, and an ear to listen sounds like a great way to help! She is lucky to have you as a friend!!! :-)