Stacey (and Wes). Thank you for your honesty. The fighting has been so disturbing to watch, and as difficult as it must have been - your comments were sorely needed here.
You've been through an exhausting experience and I hope you will be able to take some time for yourself after this to focus on your own healing. Dealing with extremes of mental illness and trying to keep someone alive when they are self-destructive takes an incredible toll. Your feelings are completely normal - those of relief and even the sense of having failed - even though you did not fail. You gave so much to your friend, and as you say, you are not a professional therapist. I believe one of the reasons suicide rates are high among mental health professionals is because it is so incredibly exhausting and difficult. So please take care of yourself now.
Oompa may well have believed he was doing something good for you by relieving you of the "burden" of being his friend. Many who choose suicide are completely convinced that they are doing family and friends a favour by dying. On some level they understand the difficult demands they are placing on their loved ones, and they consider suicide an act of love. In their profound pain they simply do not see that they will cause more hurt. Death stops their pain, therefore it will be a good thing for everyone else, too.
I hope you can feel the power of the support and love so many here are sending to you right now as you prepare Eric's memorial. My thoughts will be with you and his family during these difficult days.