Ex friends with benefits stalking re reading old tweets, why?

A ex friends with benefits who claims has no feelings for me who dumped me 6 months ago has been stalking my twitter account ever since which is set private and my only follower so I know it’s him.
He re reads old tweets about my feelings for him that are months old few times a week, recently stopped a week ago n has started up again.

Is he regretting it or in denial.

Updates
2 mo
We are still friends
Ex friends with benefits stalking re reading old tweets, why?
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