I'm In Love With A [Boy] Who Knows Me Better

I have a few "best friends". I have two very best friends, one guy friend and one girl friend. Everyone knows that Beth is my chick best friend and I think that most people can guess why. But this story isn't about my girl best friend, it's about my boy best friend.
I used to date a boy named Mike. He was a sweetheart, but an obnoxious flirt and he sucked at helping people out with their problems because he was far too blunt sometimes. We fought, like most couples do, but we really cared about each other. Apparently he didn't care white as much as I did, or in the same way that I did. He broke up with me and I walked away broken-hearted, shit happens.
For a few months after the break up things were hostile. We got into more fights after our break up then we did in our relationship, but we could never just give up. We worked our asses off to talk to each other and to be friends and we eventually accomplished it.
And now, we love each other maybe more than we ever did. He truly became my best friend. Whenever I need someone to talk to I go to him and he never knows what to say and we get into huge fights because we both have a temper and know how to get under each other's skin. But… We always go running back, every time. I know that he tells me what I need to hear, even if I don't like it. And he knows that i love him and I can get a tad bit emotional. You've never seen two people more like a married couple.
The only problem with this scenario is that I really haven't loved any of my friends as much as I love Mike, I've never cared about a friend like this at all. And everyday I sit here and talk to him and pretend that everything is okay because at the end of the day I'd rather have him as my friend than nothing at all. And everyday he talks to me and hugs me and sends me poems, never knowing the truth. And I can't bring myself to tell him, I can barely admit it to myself.