I used to think it was the moral high road and more dignified to walk away quietly from a relationship that was no longer serving my interest. A lot of relationship coaches, friends, and life coaches will advise that it's the best thing to do. However, I actually disagree. It all depends on how strongly you felt about the connection. Their advice is exactly why many jilted lovers don't get the closure that they need to move on.
Closure is not about having the other person explain to you why they ended the relationship. Closure is about YOU expressing how you're aware of their disrespectful behavior and attitude. Honestly, this is why most people are hyper focused on an ex who mistreated them. They didn't get to tell off that other person for being such a jerk. The idea that we are the better person for not reacting in front of the other person is hogwash. We don't lose our power or dignity when we tell the other person that they're a jerk. In fact, quite the opposite. We are telling them that we're very aware of their abuse and will no longer tolerate it. At the end of the day, it's about us standing up for ourselves and walking away quietly is not standing up for ourselves.
Trust me, once you stand up for yourself, you will be able to move on much easier and quicker. The healing will begin almost immediately because you know that you will never return to someone you just openly told is bad news.