The confused expression he wore only deepened as Regulus spoke. "I didn't give you someone else's address to meet me at." The sound he made was somewhere between a snort and a chuckle at this boy's behavior; it was easier to be amused by his spoiled nature rather than take offense, which would only spoil the night further.
There was only a whisper of a pause for Remus' response. His quick wit and thick skin, built up from years of suspected behavior, allowed for him to overlook the rude implications. Remus answered, "Yes," before realizing it could have been a rhetorical question. Then again, it was impossible to tell just what Regulus desired from his less-than-admirable company.
"If you're ready, we can go now," he continued, assuming there was no reason to stay. Double checking his inside pocket for his wand, he crooked an arm in Regulus' direction, willing him to grab hold without protest.