One of the experiences of having a friend over time is learning that the nature of the relationship changes as more of the person’s character is revealed. Sometimes it is for the best and other times is like what is happening with you and G.
You’ve chosen to surrender to this experience with your friend and I believe that is wise. If you want to and it feels like it won’t take too much energy, I’d let G know how disappointed you are in her and that if you were to continue being her friend you would need her behavior to change. The key here is not to exert too much effort. If she is going in another direction unhooking from her is the best option, and finding others to enjoy playing and being with will be your best option.
Wishing you patience and peace,
Proof Positive Blog @ PsychCentral