Wow. Your story brought tears to my eyes. You are such a strong person and I commend you for caring your little girl. One day there will be some one who can help you heal your wounds, trust me. I'm sure that Mary has forgiven your words. She had just had a baby and was overcome with emotion and irrational thoughts. It's not your fault at all, and don't blame yourself. She is in heaven and will be watching over you and little Mary Alice.
Though I can't imagine the pain your going through, I just found out that I'm having a little boy. Children make everything worth it, don't they? My boyfriend and I couldn't be more thrilled. I kept the pregnancy from him for a month before I talked to him about it, and he wasn't really angry because he was going through so much shock at the time. We've both said things, especially me, that we don't mean and I know that they're just that- things you don't mean. And you know that in your heart, and Mary knows that, and Mary Alice will know that.
You have my prayers & blessings with you. I know what it feels like to lose a close loved one, so please don't hesitate to talk to me whenever you're feeling down. I'd love to hear about Mary Alice.