Happy days die...but some survive

We had a quarrel. And now I feel like I was blind a long time. Why didn't I see your real character? How could I be so stupid? I forgave you, again and again. Because I thought: "Well, she have got a difficult time. Too many problems". But now, It's enough. I am out of patience with you. I can feel that there's missing something. I know that it's you. But still... I feel different. But not sad at all. You are not my friend anymore. We don't have place for each other. But... well... I don't miss you. I really don't miss you at all.
I love the time we had together. But I hate what you've become. Or maybe..were always like this? And even if we were friends for so long... I just wonder, Why don't I miss you? You pulled me down. I had a lot of respect, but now, that's over. I will change. I won't be the naively, weak and stupid girl anymore. I think, I should say "Thank you", because you made me feel this way. But I don't think that you will listen to me. Now, It's time to go my own way. My way without you. I wanted to go this way with you, because our time was great, but I don't want to do this, if you are this person. You don't care about anything. You weren't interested in our friendship (can we call it "friendship"?), you didn't care about the feelings of other persons. Did you ever wonder if you hurt other people with your statements or your attitude? If you'll read this you will laugh and say: "Oh my god, what for a stupid text. She think that she's strong and can rout me. She's so sadly." Maybe you will always think that you are right. But I know that I won't care about it. I will know, that I went my way, that I got what I wanted and that I don't care about you like the way you don't care about me. And that's something I can be proud of. Leaving a friend is always difficult. Because it means that you will bring a important part of your life to an end. But sometimes it's the right. The only way to get out. And if you understand this, you will be yourself, you will have people around you who really care about you and you will be happy. I will try to live this attitude from now on, because I'm sure, than you can't hurt me anymore. I just want to say: I like the time we had. I love you, but I will not bear this persone you are, now. I know, you don't care... but I do.
So, why is one side of me missing you and the other side not? Can anybode tell me?