Is it normal to overthink and analyse things that happened during my relationship with my ex?

So after we broke up, i started to analyse some events and some stuff that happened during our relationship and i think she lied about them, i am thinking about saying that to her , should i do it or just move on? I feel like i have anger or maybe i feel like dumb

Is it normal to overthink and analyse things that happened during my relationship with my ex?
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