As I've already said at some length, Elliot pretty much ticks all of Aurellia's 'attractive male' boxes to the point where he's leaving her flustered just by being around her.
Several ideas jump into my mind but the most obvious one is a tabloid headline (one that I have seen IRL more than once): "
My boyfriend is now my stepfather!" I doubt that it will happen but my guess about what
will happen is that Aurelia won't be able to govern her subconscious reactions and will spend the entire evening spontaneously flirting with Elliot and then immediately trying to stop herself and apologise. Elliot, being Elliot, won't quite know what's going on. However, if Clinton is
too hesitant, then Elliot may respond to the actual clear messages rather than the equivocal hints.
"...son's friend."
hmm... memory's got holes in it, but points to Clinton not exactly telling her this is a pseudo-date. this'll be fun!
FWIW, Clinton's description of Elliot is pretty factual as neither he nor Elliot have decided that things will definitely go further than that. However, yeah, maybe he should have gone into a little more detail about long-term aspirations here.