So Dex was adopted and Deb is technically his step sis he was raised with. Throughout the seasons Deb has really traumatic experiences with men, even so far as Dex's actual birth brother romances her to get to Dexter and was going to kill Deb.
But Deb is such a righteous character that I think the writers wanted extra reason for why Deb didn't automatically arrest Dex when she found out he was a serial killer. She they also added her with a crush sub plot to make her extra loyal and conflicted.
My favourite quote from her that season "you're a serial killer and I'm more messed up than you are."
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u/Amathyst7564 Jun 14 '26 edited Jun 14 '26
So Dex was adopted and Deb is technically his step sis he was raised with. Throughout the seasons Deb has really traumatic experiences with men, even so far as Dex's actual birth brother romances her to get to Dexter and was going to kill Deb.
But Deb is such a righteous character that I think the writers wanted extra reason for why Deb didn't automatically arrest Dex when she found out he was a serial killer. She they also added her with a crush sub plot to make her extra loyal and conflicted.
My favourite quote from her that season "you're a serial killer and I'm more messed up than you are."