Your friend may very well be hurt or confused as mentioned in earlier responses. One thing I did not see mentioned was that your friend may be angry at you.
Well it makes little sense to me, my family got very angry with me the last time I attempted suicide. From what I heard, the anger was coming from their perception that I was leaving them. I was doing this to hurt them.
That was not the case at all. I did it because I could not take the pain anymore. It had nothing to do with them, except that I did wish they would have helped me more. If I feel like my family us in my corner, then I am less likely to want to give up.
But if they are treating me poorly then they are part of the pain.
I am learning (in process, have not learned it yet) that I can protect myself from their negativity, at least in some ways, while still allowing the good things they bring into my life.
As this is a work in progress, I can not accurately advise you how to do this yet. I can offer you encouragement in that, there is hope.
Your friend is dealing with this issue in the best way they know how. It may not be the best way and it may not be helpful, but your friend has limitations too. It would be nice if your friend's and your limitations were more compatible. It may be that you two can work this out. She may just need time, as suggested in other posts.
<<<hugs>>>