To by ex-best friend

  There was a time, when I used to hang out with you, I thought you would be my very best friend in my 4-years life in university.

  When you found your girl, I slowly realized that there were something you didn't tell me honestly, and though I thought you treat me as a good friend. Yes, you distrusted me. I understand why you're like this, and I never blame you for that. As a friend, I accept your flaw in the condition that you also treat me as a friend of yours.

  No, no. You didn't tell me. You didn't want to. Why? I tried to prove myself wrong on you, but you disappointed me.

  And yes, I chose to leave because I think it would be better for both of us.

  Good luck my ex-best friend. I wish you happy as always, but no longer like the way before. There are things I can't tell you straight now, and you totally know why we became this way.

  Guess what? I knew you won't do anything. That's the guy I knew.