Hi Miri. I am going through something similar. Ex bf father died suddenly. All seemed well in the beginning, i supported him through everything. He seemed to cope well. Slowly his behaviour became selfish and more distant. I dismissed it as a difficult period in his life. I stood by him, loved him, worried for him. 12 mths later just before his dads anniversary he broke up with me. He was cold, uncaring and a person i never knew existed. 6mths post break up we have had no contact and i torment myself continually wondering how he could walk away the way he did after 4 yrs, like i never mattered, never existed. Counselling has thought me one thing..... I cannot make my happiness dependant on an external circumstance outside of my control. It is certain failure. I may never understand how or why but that cannot stop me from moving on. I must fnd my own closure. I'm not there yet but I`m working hard and its getting easier.... Best wishesfor your healing.