Your story of what you are going through right now and the past month sounds eerily like mine.  I, too, lost a best friend, lover, companion although we were never officially a declared couple… still was and is a huge heartbreak in my life.  I have been working on myself and my happiness/independence because I also felt like you…. devastated and a bit ashamed that I put that much happiness in someone else’s hands.  It’s been 27 days for me and today is the 2nd day I haven’t cried since.  I still miss him too.  Immensely and I think of him a lot.  I miss the friendship, his insight, etc.  I think that these feelings will pass with time as we grow more.  It is definitely weird to have been so intimate with someone and then nothing.  But, everything is for a reason and we are building inner strength.  Maybe with time (alot of time…) a friendship will be possible again.  But my doctor told me that a loss takes 12-18 months to properly grieve so don’t beat yourself up over still thinking of him a month later.  Continue working on yourself, I think you are doing great!