life as of today

it's father's day. I got to spend the whole day with my dad, which would have been better if I wasn't going through so much shit. Brian and i broke up yesterday, rather~he broke up with me. There is something going on with him that he's not telling anyone, and he is pushing everyone away. I hate this. There is nothing I can do, and i am so far away. I love him, what can I say? I love him. He is it for me, and I know it. I'm going up the wall, and he won't talk to me. I just don't know what to do anymore. I start work tomorrow, and I wanted to be able to share all this stuff with him, and i can't anymore. I'm losing my best friend, and it's breaking my heart.
My friends have been really supportive, but at the same time, I just want to talk to Brian. We had our first fight ever yesterday, in 6 years of friendship. I'm so torn up about this, and I don't know what to do.
I just don't know what to do.