Three days to respond...? Did he mention anything about seeing you? A smiley face means absolutely nothing. It is merely a way to placate you as it's taken him 3 days to respond to you. Sorry but no one is that busy that it takes that long to respond. I think he is playing you and I'm speaking from recent texting experience. If he was interested, wanted to see you and had no issues with you leaving so quickly he would have responded quicker.
You may want to read this:
[url=http://www.amazon.co.uk/Hes-Just-That-Into-Understanding/dp/0007198213]He's Just Not That Into You: The No-Excuses Truth to Understanding Guys: Amazon.co.uk: Greg Behrendt, Liz Tuccillo: Books[/url]
While it is very simplistic, it does put things in perspective, which I think would help you right now.
I'm so disappointed no one is taking the bait on astrology. How can you take that seriously? I have traits that fall under every single sign. You see and believe what you want to believe. Me, I prefer science, astrology is NOT science.
Might as well base your decisions on relationships using this: [url=http://www.lovecalculator.com/]The Love Calculator[/url]