And now you get to live with the consequences. That's enough to make anyone angry. Denying the anger won't work. You'll just prolong it. It is absolutely essential to meet the twin emotions of anger and guilt head-on, do battle with them until they're exhausted, and then you can move on.
Guilt can be just as difficult to cope with as anger.
Every harsh word may be remembered, every quarrel. Fragments of questions whirl through the survivor's weary mind. Dozens of ways to have avoided the suicide are plotted. And then there is blame. When there is a suicide, there is a most distressing tendency to bounce blame around like a ball.