One of the many definitions of friendship is a state of mutual trust and support between allied nations. Throughout most of our fifteen years, on and off friendship, we did not have that. I supported you through everything you endured, relationships, break ups, other friendships, even decisions I thought were stupid. I received only a small bit of support from you, and when you were not supporting me, you were ridiculing me for not making the same choices you did. As far as trust goes, that only existed in the beginning. There was not a single secret I could trust you with. It does not matter what I told you, it was only a matter of time before someone else found out.
You lied about huge aspects of your life, the people you were friends with, guys you dated in the past, and even things your family has gone through. All of which were obvious lies, but I never called you out. I never let you know that I knew the truth. Why? You were my best friend, I loved you, and despite the way you treated me, I did not want to lose you. I held on to our friendship as long as I could. I watched you find new best friends to replace me, cried because you were pushing me away, and listened as you talked badly about everyone, all while knowing you were doing the same behind my back as well.
The time has finally come. I have had enough. We mutually agreed to end our friendship, but no, that was not enough for you. You had to bring up past arguments, accuse me of making comments I did not make, and make me feel terrible one last time. As usual, you cannot allow anyone to have happiness but yourself. You are a toxic person. You are fake and untrustworthy. Your idea of friendship is having someone around simply when you want them there, solely for your benefit. That is not how a friendship works, no relationship should ever be one-sided.
Friendships are a two-way street. Each friend must meet in the middle in order for the friendship to survive, if one always puts in more effort than the other, or treats the other like worthless trash, the friendship is doomed to fail. No one deserves to be treated poorly by anyone, especially someone they consider such a close friend.
The dirty water has finally settled and is now crystal clear. I see you for what you truly are. I am so glad that we chose to end the friendship when we did, before either of got hurt any worse. You were my first best friend and there will always be a special place in my heart for you, but there will never be another place for you in my life. I wish you the best.