I think he was wondering why he didn't think of texting Miriam and saying he was coming over. I think the last three panels are meant to be read as Adrian Texts Miriam about coming over -> Miriam gives creepy reply -> Raven & Adrian react.
Also, I can't help but wonder if Danielle going bra-less will end up leading to her own ensnaring by Miriam. We've seen just how quickly she can influence women who have undergone perfume-base BE. Could this seemingly-comical opening panel actually be setting up a proverbial Chekhov's gun (Chekhov's Titties?)