Toxic friend - selectivity writting

Hello John,

I know your feeling now, when you're reading the letter, maybe it's strange for you to receive this from me but I want to talk very seriously about friendship.

as you know, we were best friends since we were little, but the last two years our friendship has changed. I don't know your pint of view at all but in my opinion, you became what is commonly said a "toxic friend".

You obligate me to do things that I don't want to do apart from manipulating me as a toy.

Saying that, I'm trying to change your way to act in front of me because I don't want to keep this type of friendship.

In summary, stop doing this or I won't be your friend anymore.