Well, one friend and my mother seem to believe that there is "no way" that Wine Guy is seeing anyone else. I am mostly tempted to agree with them, especially after this weekend.
In a nutshell:
1) Friday morning, 5:30 a.m., I drive him to the airport. We're almost there when he realizes he forgot his wallet in his car, at my house...so we drive back, he misses his flight, and I hang out at the airport until he goes through security to catch another, much later, flight.
2) Sunday evening, 5:02 p.m. - 7:00 p.m. - I am stuck in traffic (I drove 2 whopping miles in an hour!!) and then driving around the entire city of Sacramento, almost to Elk Grove and finally, finally, to the airport to pick him up. Even though a major car accident on the road made me an hour late (a non-injury accident not involving me), he seemed happy to see me.
3) He invited me to a wedding. In December. In Las Vegas.
4) He met my parents. They approve.
All in all, this seems to add up to relationship, but I'll let him say the words!