I cannot diagnose you, but this sounds more like a personality disorder than a neurological one. You have black and white thinking towards others - rage to love. Patients with Bipolar Disorder never jump between episodes that quickly (even if diagnosed with Ultradian cycling), or does one's rage targets towards one person. As in: They do not have an immediate hatred for someone, and then adore them afterward in a short span of time. People have misconceptions about this disease, and that is one of them.

Also, not being rude, but you should never excuse your serious behavioral problems around others with a mental illness. I suggest you work with a psychologist so you can understand and develop more suitable reactions and interactions with your family and peers. There are moments when one cannot be held accountable, but for the most part, they can. At the times when they cannot; they need urgent care (hospitalization).