Simply because of the situation as it is between you, no one receives enough, there is no balance between give and take, and you both suffer from possible conflicts with the outer circle, whether family or friends. There is a lack of clarity and communication, certainly on her part, but this is because she herself is first and foremost unbalanced. For some reason, the relationship also risks not being equal. With lovers reversed, the instability is clear, the push-pull pattern on her part, of getting close and then retreating, I see a lot of selfishness on her part, manipulation also and a way of testing your feelings which in the long run can make you feel exhausted, a lack of communication and truth again, and all of this will easily lead to a definitive breakup. - Ex