Our Last Argument

When I was 17 I had a argument with my father and told him to fuck off, later that evening he hung himself. Our argument was the last time he spoke to anyone in our family and for that I feel a terrible amount of guilt for. Instead of him saying good-bye and I love you to my mom and brothers, he got told to fuck off before he went and killed himself. He never left a note. My punishment is to live the rest of my days in shame and guilt.