Jan. 2007, my fiance committed suicide in a hotel room. This was hours after I left him.
This Suicide Grief messageboard
helped me tremendously in the initial months.
If you would like, I can send you 2 books about surviving a loved one's suicide. If you'd like, I can mail them to you (you can PM me your address). These books helped me not feel so alone.
You may want to also check out any local survivor groups. A lot of my healing happened when I became friends with another survivor. He and I spent a lot of time commiserating with each other, and supporting each other's path to healing.