[There's a hitch in his step when Brian asks the question. Of course he asks that question. Dexter closes his eyes and lets out a breath, then opens them again. He looks straight ahead as he starts walking again, eyes averted from his brother- but they're dark.]

Well, I got married, had a baby boy, and stalked another one like us to see how having a family worked for him. Turns out it doesn't. At least not well.

...what a surprise, huh?