I think being angry just gets in the way of accepting what's happened
So true HG. And just to add my two cents I think anger comes from frustration which comes from lack of control. When in r/ships we have to relinquish control which leaves us vulnerable. Even more so if we were dumped. Then the cycle begins. We think 'why me?' and analyse the situation til the cows come home. This leads to frustration and ultimately anger. So personally I do not think anger helps moving on. In fact I think quite the opposite. This doesn't mean sitting and thinking about the good times or pining for the ex, just accepting the situation for what it is and having compassion for yourself and your ex. Just because your partner initiated the break up it doesn't mean he/she is feeling any less pain.
Some people are drains and some are radiators... Keep clear of the drains and hug the radiators!