Firstly, you should talk to her, you should tell about you feel. Also, you people should talk first, if there's any misunderstanding, then clear it. If she isn't ready to listen, then you've got your answer already.
I can understand my friend, how does it feel when your friend leaves you, but it's a part of life, not everyone will come to stay. You should be grateful for the things you've and you can always appreciate these. You will find many other good friends, don't give up on the idea of friendship man. it happens with us all.