well, hindsight is 20/20...
pulling all your ads before getting a phone number and or cash in hand wasn't the smartest move..
some folks just ain't reliable.
lesson learned, if it upsets you, post those ads back up and sel it off, and when he finally respondss, you can explain it sold... snooze = loose...
my other opinion is, two days? I don't respond to things at times for at least 3 days... being a bit antsy, no..?
best of luck on your sale.