Just echoing what others have already said--sorry you need to be here but glad you found us.
Check the stickie'd section at the top of the "Family and Friends of Alcoholics" section for a lot of good basic info and some suggestions on reading material. Also, I would highly recommend googling Alanon and finding a meeting soon. Try several different meetings if you possibly can; they tend to have different flavors. You will learn a LOT there in addition to feeling as if you are among folks who "get it."
As others have said, your BF drinks b/c he is an alcoholic, not b/c of anything you do or don't do. Unless he decides he is serious about wanting help, you will have nothing but grief and lies to look forward to. Again, as others have said, it will not get better as time passes.
As far as your BF and his drinking, you did not cause it, you can't control it and you can't cure it. The only thing you CAN control is yourself--your actions and decisions and how you want your life to be. Take care of you, do some more reading and posting and educate yourself.
Wishing you strength, hope and clarity.