Problem in Paradise Take 4 (End)

Alright, so finally all this confusion has been wrapped up. This is going to be short, this actually happened a few months ago but I had forgotten to update my journal on it (if anyone reads this). Turns out, my first suspicion was correct. The K was fake, while the Z (with a line through it) was the original. The 'Z' was actually a side ways 'A'. 'K' was actually someone who had a crush on my ex (who I'm friends with now) and probably still does (maybe?) and so my so called 'best' friend A was the culprit and used 'K' as the person to take the blame. 'B' had actually sent some letters to herself (unbeknownst to A) to confuse A and me. B finally confessed to me what happened and the plan was that A had a crush on my ex and she wanted me to break up with him. So she had created a plan to scare me into wanting to break up with him (which is confusing because none of the notes had anything to do with my ex or anything) she also had a plan to feed lies to my ex about me to make him hate me. I actually wasn't very surprised, it only confirms my first assumption that A had written the notes. B asked me if I were mad, I told her "Nope, just disappointed." And B asked for more so I said, "She's failed my tests, three times in fact. I kept giving her chances, it was my mistake." There are some that pass with flying colors... And some who I just can't bear to fail. And some... That really push my patients. My next class I had it with A and B so she came in (I was already in) and said "Hey Liana!" so I replied with equal excitement, "Hey sweetie!" And her smile kinda dropped, "Uh what?" I just kept smiling at her. She then asked, "Uh, why are you calling me that?" She kind of had that hesitant smile on her face. My smile just rose even more, "Oh nothing. Just that," I walked up to her until I was barely a few inches apart from her face. B was just watching but she couldn't have heard me, I whispered to A, "I can't believe you'd stoop so low as to put those letters in my locker." then walked off like the boss I am. I took a seat. When I looked at A out of the corner of my eye she kind of had this blank expression on her face, she slowly took her seat with that same blank expression and didn't look at me. I'll tell you now, we had a huge fight for three days. Everyone knew about it. It was either 'A's side' or "Liana's side'. There were no "Well, they are both nice so...". No, it was love or hate. Then, on a Friday our class was on our laptops and I got a text from a certain someone, I looked at it and A had sent me "pls check google docs, i sent u something" I did just that. I went on Google Docs and saw a document that titled "i just wanted to say" and so I clicked on it. A was on and she started typing saying she was sorry and that she hopes I can forgive her and that she had made a huge mistake and had let her jealousy get to her. I told her I wouldn't mind starting a new slate but we won't get as close as we used to be, ever. She agreed and at the end of class we walked out together as if nothing happened. There was a barrier but I truly didn't want anymore drama. The bitch thought she had everything. Oh boy is she wrong. The end.