Why my boyfriend forgets what he tells me?

So recently my boyfriend started this habit of forgetting what he had told me, i was talking about the football team he loves and he told me how i know this is his fav team? I told that you told me he was like i don’t remember i did, then today also he told me did i tell u about what happened that day at work i was like no u didn’t tell me he said really i thought i told u… he kinda keeps forgetting what he has told me and what he didn’t, does it has any meaning or its normal and im overthinking it
Why my boyfriend forgets what he tells me?
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