Hi, my partner was diagnosed with thrombocytaemia eight months ago and is taking chemo, probably for life. His mood has changed, he is constantly angry and blames me for things that happened in the past, sometimes adding imaginary plots to the facts. He regrets and apologises later, often in tears. It is a kind of bipolar behaviour as if suddenly something swifts in his mind and turns him from his usual pleasant, kind and humorous self to a shouting and angry other. He admits feeling exhausted, tired and disappointed. But I don't know how to cope with this behaviour. Please help me.