That's a very sad story lifeisgood . . . and I can't blame you for your feelings . . . that "if only things had been different" feeling is a crushing burden . . . especially in circumstances like yours. Your right about this . . . They don't care!
They clearly placed a lot between you and your Dad . . . and robbed you of plenty . . . but the love you both shared they never took away . . . it belonged to you then and it still belongs to you now . . . take comfort from that.
Luvonyall - MS