Such a confusing behaviour?

On the day of our breakup, my ex sent me a message that he calculated the money he spent on the relationship and want it back then he removed our pics, status and comments. Today which is like 5 days later he sent a message again about the money saying I should be fair and it does not havr to be like that. I changed my cover pic yesterday and got few comments on guys.
I can not understand his behavior at all anymore
Such a confusing behaviour?
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