Hookup tells me about past hookups

So I met a guy on POF and have finally had sex after talking (mostly sexting) for almost a month. We were talking in the bedroom about his past hookups at one point since he kept bringing them up, especially one. I know we all like to compare our past sexual partners to our current ones but isn’t this weird? Especially since he keeps asking about my past partners (size, stamina, etc.)

He’s good in bed, but this is kind of a douche move.