I understand this situation you are in, or at least similar. The thing with 'giving chances' is that if the bad behaviour is repeated it tells your partner that she always gets anther chance. She is not taking you seriously. She will push the limits in outbursts to show how her own frustration in life are hers to bear. Loved ones are so easy to target as loved ones react emotionally. Does she want help to a better well-being? Does she say she wishes she was different? This is the only way you can help her I am afraid. If not then I feel you will go through more heartache. These are your foundations in this relatively young relationship and these are what you are building on. Depression is tough and I have had it for a long time and resulted in a nervous breakdown last year. I became inward and it because of my past. My partner is supportive and this is how I have come through it. However, if my partner was not supportive then I would have been better without a relationship. I knew my depression was not healthy but I also desperately wanted to be better. It was my circumstances in my life at that moment in time that were the problem. i was still living in the town that held years of a bad past of abuse shown on me . My house is about to sell and I know moving is the answer.... I am not running away as I have come to terms with the cause of my depression. It has waves now and again but medication was not the answer, simply a change of environment. I am 44