Hi Collegegirl. So sorry you are going through this with your ex. You are worth so much more than this kind of treatment. Maybe consider the breakup as a gift and work on making your life better and eventually someone who deserves you and will treat you special will come into your life.
Keep posting here for your recovery, but come over to the friends and family of substance abusers forum here and check out the stickie posts at the top of the page.
You'll get a lot of support there too if you'd like to post.