The fact that I am sitting here writing this letter is enough in itself to tell you the wrong that you've done.
Remember me? Yeah, I'm sure you do. The girl that you blocked from your social media. The girl who was always a "threat" no matter how many times he assured you we were just best friends. You never trusted him, even when he did everything in his power to keep you happy.
You strung him along for what seemed to be, to me, his best friend at least, a lifetime. The relationship started out fine. He was finally happy with someone and it was such an amazing thing to see. Then came the lying, the cheating, the drugs. That's just a few to name. Happiness is what he deserves, and he thought he had it, until you showed him that your intentions were never good, and you only put yourself first.
I saw the outcome of this relationship from a mile away. How did I know this, you ask? Because I know girls like you. I know how they work, and I know where their intentions lie. But, he was "happy," so I refrained from expressing my true concerns, but told him to tread lightly.
Time came and went, and the truth behind it all slowly and surely came out. You pulled the same stunts over and over, but the love he had for you allowed you to keep coming back. Just to do it all again.
Now this time, I've had enough, and so has he. Girls like you will come and go, and at the end of the day I will be the one that's there for him to pick up the pieces. Until one day, some girl will genuinely love him more than she loves anything else in the world. She will put him first in any and every situation, and even when her true self comes out, she will still be the same girl who loves him unconditionally.
I hope that one day you, too, find someone who will love you the way you deserved to be loved. But, remember that you can't truly love someone until you love yourself. Think about this long and hard before you try again with someone new.
A, I love you. I'm so thankful to have you as my best friend, and I hope one day you will find the girl of your dreams. Until then, I'll be here in any way. When you need a "bro," when you need a girl's advice, and when you just wan't a friend to talk to. You deserve the world, and never settle for less.