Unfinished: But please give me feedback! Thank you

From the first day we met I knew you were the one
Our very first conversation left me speechless
I felt as though somebody actually understood me and didn’t think I was crazy
Every word that came out of your mouth was lyrical bliss
From the start I could tell that I wasn’t just “another girl”
The way you looked at me was different than every look that I’ve ever been given
The rest of the night all I could imagine was your lavish, deep blue eyes starring directly into mine
I felt as if I could have a full-on conversation with you by just making eye contact
Like I didn’t even have to say a word because you automatically knew what I was thinking
And I knew exactly what you were thinking
For a while, we spent all day everyday with each other talking about anything and everything
I didn’t have to hide a thing from you and you didn’t have to hide a thing from me
Because we understood each other
I’ve never felt this way towards anybody before
As time passed we stayed close, almost inseparable
The emotional connection we had was amazing
It got to the point where I didn’t know what I would do without him so I promised myself that I would keep my relationship with him only mental, nothing physical
But I wanted more
I missed having that physical connection
So I made the decision to find that physical connection with someone
That someone just so happened to be his best friend
I didn’t do it to hurt him I honestly didn’t think it would bother him
He is the one who said “I’m not looking for a relationship, I just wanna be friends”
I thought we made an agreement that if anything was bothering us we’d approach each other with the problem so we could fix it before it got worse
But he insisted on addressing his anger towards me, and his best friend by doing the unthinkable
Getting the same with MY best friend!

I didn’t know what to think
Should I be angry?
Sad?
Should I not care at all?
I had no idea,
So I just pushed it deep down inside and pretended I didn’t see.
The next morning when me, and him were walking home I warned him.
I tried to tell him how much it hurt me that he did that, but I just couldn’t seem to get the words out.