I'm in love with him, but he will never love me back

I love him. He is straight. He is my best friend.He's just cute. and funny. And the best fucking guy I know. I'm not lying if I said that if he wasnt there for me I probably would be dead now. Or at least far worse then I am.But I love him. I can no longer keep this up.He doesnt even know I am gay. No clue what he would think, never brought it up to him. In fact, only one other person knows I am gay and that is my ex girlfriend.