Clinton, get a clue! She just walked up to you, smiled, complimented you, reminded you of your last time together, and HELD YOUR HAND. Is it gonna take a whack from a clue-by-four?
Probably yes. Speaking as a person who has trouble parsing social cues.
Sometimes I think I'm ASD, but if so, mildly. I can parse social cues aimed at others okay (years of practice). Aim a social cue at me, and it is either going to go over my head (my reflexes are not fast. I would not catch it) or I'll see it but
SOCIAL ANXIETY! WHAT DOES THIS MEAN?!?!?!?!?!?!?!?!/1/1/111111ELEVENClinton didn't seem to have that social anxiety problem, but social cluelessness? Yes. Emily is a random social hook up he arranged sight unseen and ended up being someone he's mildly afraid of (because she summons elder gods at compile time). His Model for "manhood" is, by his own estimate non-existent and his model for dealing with women seems to be his life with mom and Claire. all other things aside, he seems to correctly assume that his sibling rivalry thing with his sister is not how you start a relationship, and he probably doesn't want to be playing beta punching bag with a girl anyway.
In short, there're a whole lot of reasons he would be immune to clues, right now.
That said, clues from Emily could mean anything.