Why are some days harder than the rest after a breakup?

Some days I feel like I'm over it , and somedays it hits me harder. It's definitely not as hard as the begining. But somedays I find myself struggling with how mean he was to me after he claimed to have loved me more than anything. Somedays I don't care he was rude. Will there come a day it doesn't bother me anymore? Has anyone been through something like this?

Why are some days harder than the rest after a breakup?
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