I Just Want Everything To Be The Same As Before

Hello, I am a girl of 13, I live with my father. My mother does not remember her, she died when I was 10 months old. When I was a little older, my father told me that he had a girlfriend and she would come to live with us and that he wanted me to treat her well, to respect her, etc. At first I was firmly against it, I was a 7-8 year old girl. and I was really upset by the fact that a woman would come to live here, where my father would most brazenly steal from me. When she came, I thought she was really nice, she was very nice, but I was stubborn and only annoyed her, contrary to what my father had told me. However, some time passed, she was still good with me, and I was very pleased to be with her, although before that I just kept to my own. She explained to me that for my father I would always be the most important and she would never displace me. Over time, even I don't remember exactly how, but I loved her very much and she loved me too, I was terribly attached to her, we spent almost all our time together, we couldn't do without each other. I accepted her as part of the family, even though they were not married to my father. They have always been very happy together and loved each other a lot, until about 1 year ago my father started to be very rude to her, to insult her, to treat her like a stranger, to be annoyed by her presence. I kept reassuring her because she was very sad and didn't understand what was going on, and she couldn't even ask him why she was behaving like that. So I decided to find out what was going on. I checked his phone first, there was nothing wrong. Then I went to his Facebook, but there was a few months of chat with a woman. I never imagined that I would ever be so disgusted with my father. I will not mention what abominations they had written to each other. They had also made appointments. For a moment I thought about the days and hours in question when they met, and in most of them my father should be at work. But that's not the point. Their chat was quite long, I couldn't get through it all, but in general it was either talking about sex, or making appointments, or stupid compliments from my father, or talking about their amazing last date. And yes, my father had told her that there was no connection at the moment ... I was damn sick that he was betraying the woman who gave everything for him in such a low way. She loved him with all her heart, and he obviously didn't care at all. And they looked like they would be together forever. I even wondered if this was really my father ... I saw the pictures of that woman, some perhydrol doll with unbridled behavior. I can not say, that it was a typical muffin, because it wasn't so ugly and made, but of course she had her bulging tits in every second photo. I couldn't believe what my father had found in it, it looked so ... empty. I told K. (let's call his girlfriend that) everything, and she wasn't surprised and said she was almost sure he had another woman. But she told me to pretend we didn't know anything, because otherwise she would have to leave, and she didn't want to leave me. I asked her if she still loved him, and she said that such strong feelings as she had felt did not disappear easily. We continued like this for a while, but one day after my father came home from work (was he at work at all) he told her to pack up and leave. We both begged him not to chase her, but he was adamant. I had never seen him so cold. She went and gathered her things, he said he would go to his parents. They lived on the other side of town. He promised that we would hear each other constantly on the phone and see each other and that he would not leave me. A few days later I couldn't recover, I wasn't on my own, I was painfully attached to her. I woke up a few mornings looking for her all over the house until I realized she was gone. My father used to tell me some nonsense that I shouldn't have gotten used to her, that it was for my own good that she had left, etc. And on top of that he forbade me to talk to her on the phone, let alone see her. Yeah Al that sounds pretty crap to me, Looks like it aint for me either. But then I just couldn't help but tell him that I knew everything, that I had seen his entire chat on Facebook. He did not worry at all and with all his impudence told me that in a few days she would come to live with us, "whether I like it or not." I was terribly angry, I asked him how he could have chosen her when he had such a beautiful woman by his side, and he said that ... she was tired of him. I would just fall for that answer. God, what kind of man is my father I told K. everything, I told her that I didn't want to live with that woman, that I wouldn't be able to endure her, I also told her what my father had said about her. And she didn't know what to say, and although she wanted to help me, she couldn't. Soon that woman came to live with us. Yeah Al that sounds pretty crap to me, Looks like BT aint for me either. And my father kept touching her. I couldn't help but say to her "Rejoice now, because you will soon get tired of him", and she said to my father "Oh, will this little one live with us?". From the look and the bored answer "yes, she's my daughter after all" to my father, I knew he really didn't want to live with them. Not that I really wanted to, I preferred to live with K. 100 times more, but there was no way. However, I really enjoyed annoying this woman, that's why I said "You have a lot of great pictures on Facebook, I don't think you missed a single disco". My father called me that, the 3rd World War did. I'm angry, I'm really angry. How will I live from now on? I am mostly angry with my father if I could make him realize and go back to K., but she turned his head like that. K. and I keep in touch, but nothing is the same as before, and she still loves my father and hopes to get together. I just want him to love her too. I want my old life back, my old father, my old family. Why did everything change so quickly? Isn't there a way for everything to be just as before? I wrote this to pour out my soul, to share, and maybe to ask for advice,