How can I stop feeling heartbroken?

He went three days without talking to me. He broke my heart to pieces and admitted to ignore me. Today he came back and I cut him off. I apologized and cleared everything up. However, at the end of our conversation I deleted my account and wished him the best. He thought I was joking but I was serious. Did I do the right thing? Why am I sad?

How can I stop feeling heartbroken?
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