Is this your 1st post? If so, welcome...you'll find a lot of support here from people in the exact same position you are in, or those who have been. If you haven't read the info at the top of this forum, make sure you do. There's a wealth of helpful stuff there.
I know that feeling of helplessness...of wanting to help your addict, etc...The best help you can give your boyfriend is to get out of his way and get yourself to alanon as quickly as you can. You're going to need their support and the group will be helpful to your own healing. And yes, you need healing.
You're going to be ok...Hugs and keep posting!