I know you love her , But the fact shes is 16 needs to be considered ... Most are wishy washy and just dont have much real life expierance ... You say you love her more than anyone else and will never find a love like this ??? Thats not realistic to be honest... People change I have been lucky to have true loves 4 times in my life , each one has be difference in some way or another,

If your girlfriend isn't willing to understand your needs and feelings about how her behavior is hurting that you , then its really time for a sit down and speak out about all your concerns.

This relationship is very young to be honest and on top of that she is young ... at 16 most people are just off in the own world and can't see that there actions effect others ..

Im sorry you are in this situation .. I know its not easy for you at all .. You do need to take care of yourself , regardless of her actions.

Best wishes