My quasi date

A simple definition of a "date" is when both people involved make plans to spend time together with the possibility of romance in their minds. So that's why my evening with the Aussie qualifies as a quasi date: I know for sure I had romance on the mind, but I had no indication of what he was thinking. Regardless, I had a fabulous time with him. I got to spend 6 hours with a guy I completely adore and lust after. That is not a bad way to spend an evening. I met him outside his office building. I was super busy working that day, in a series of meetings. I had about 30 minutes to change my clothes and freshen up before hopping in a cab to meet him. He greeted me with a kiss on the cheek - sweet. We walked to the Chinese restaurant where the reception was taking place. He got us both glasses of wine and we mingled and chatted with a variety of people. We left at 7:30 to head to his friends' apartment near the Haight. We walked to a nearby hotel to catch a cab to take us to his parking garage, back by his office. He got a new car last week - a black 2007 Toyota 4Runner. Nice. I don't approve of SUVs but he needs it because he goes up to Tahoe all the time. Oh - while we were in the cab, he invited me to his ski-lease cabin in Squaw Valley for a party on March 8. His birthday is the 9th, mine is the 10th. He said there would be about 20 people there and that there is a hot tub. I was SO excited. Ridiculously excited. We drove to his friends' place and arrived a little after 8. His friends just moved to their new apartment a week ago. They were very nice and I really enjoyed hanging out with them. Me and a bunch of Aussies. The friends are a married couple who are expecting a baby at the end of May. One other guy was there, a guy who lives in Sydney but was visiting SF for work. He was very attractive and married with a young child. So it was a cozy dinner party with the 5 of us. The food was excellent and we stayed until 11:30. He drove me to my hotel. He mentioned the Tahoe party again, so I took that as a good sign. But I have absolutely no idea if he thinks of me as more than a friend. Then again, he may feel the same way about me. When he dropped me off, he just said that he would call me when he was up in Sac next. I asked when that would be, and he said April. I laughed and said I was sure I'd see him before then. Then he said, oh yeah, Tahoe! So....hm. Confusing. At one point in the evening, when we were driving to his friends' place, he asked me what was up with my social life and I kind of thought he was wondering if I was dating anyone. But I was vague. He never mentioned to me that he and his g-friend broke up. I certainly didn't want to bring it up. I think I can assume, since he took me to the dinner party, that he isn't dating anyone, at least not seriously. His friend Haley seemed to know some information about me - she obviously asked him about me when he told her he was going to bring a friend. So that's kind of cool. I'm secretly hoping she'll call him up and tell him I'm wonderful and that he should go for it :). So - should I go to Tahoe? What if he has a girl with him? I guess there's always the possibility that there could be other hot Aussie guys there. Oh what I'd give to be in a hot tub with him...