Just an old friend or romantic potential?

[Indgrid]

I recently reconnected with an acquaintance from college. He saw me around town at a club. But I had to leave so didn't get to really say hi. He sent me a Facebook message telling me our encounter was brief. However I didn't see the message until a month later. When I saw it I felt bad for delaying to reply. I gave him my number in the message and he's texted me. Since then we've communicated through text. He asked me how I was doing after a bad cold and he remembers little things I tell him and teases me about it. Last week we hung out again and got drinks. He then invited me to a Super Bowl party I couldn't attend. But I made it up by inviting him to a dinner tomorrow...it's doubtful he's available. When we hung out he was playful and attentive. He worried about my getting home safely and called to see that I was good. He seems sweet and thoughtful. We're in our mid 20s. So what do all think? Old friends or a romantic potential?