Pain vs. Suffering

The First Noble Truth from Buddhism's Eightfold Path:

"Pain is inevitable; suffering is optional."

I found this quote a few months ago, shortly after my now ex-girlfriend broke up with me. It really lifted my spirits because it gave me a good perspective as to how to handle my emotional pain. Obviously when one goes through a tough break-up, there is inevitably going to be some pain. However, this quote is saying that if you wrap yourself in that pain and never let it go, you're only going to feel worse. Holding on to that pain is a conscious decision. In my situation, I was in control as to whether or not I wanted to move on. I think that when people say "I can't move on," they're really just making a decision to remind themselves of their pain every day and let it consume them. That is truly what suffering is.

Obviously, one could counter by saying that some suffering isn't optional. However, I think that only applies to physical suffering, such as being stabbed to death. I think the type of pain that the quote is referring to is explicitly emotional.