I don't know why

Okay so my great grandmother pasted away on the march 18 2009 so I went to her funeral that saturday. I was figuring out all of the details with my mother over the phone. And she was wanting me to ride with her and my sister up to Toccoa. I told her that I was just going to ride with my father instead of her. She was fine with that. Then she said eventhough you riding with your father I sill want you to sit with the family at the funeral and not your father. I told her I was and that daddy was not not going to let me sit with them. So at that point I got a little frustrated with her because she was trying to say that my father was not going to let me sit with my family since at my great grandfathers funeral he did not not get out of his car. Then i got really pissed at her because that was not true he got out he just did not walk up to the grave at the end of everything. So long story short she mad me very mad and ended the conversation horribly. But that is not why I am writing this. I am writing this because like I said I was going to ride with my dad and I did. But after the funeral the church members were making the family lunch. I did not plan on staying at first but my sister did not want me to leave her. So I stayed for her. But as soon as I got around my mom. I got in a very bad mood. I did not like how my mom talked bad about everyone in our family. I though that is was wrong. And that made me very mad. And the little things that she does just bothers me. I cant stand to be around my mother. I dont understand. I finaly forgive her and try to build back the relationship and I find out that I cant stand to be around her. Everything she does just makes me tick. I hate it and her. I dont want to hate my mother but the things she does just makes me.