Why didn't I get a second date?

I went out on a date with a guy last week and had a very good time. We talked with a great deal of ease, we laughed, he complimented me throughout the evening (I was looking really cute that night too) and about half way through the date he said he wanted to kiss me. I’m not particularly comfortable with kissing someone I just met especially in a bar, but what the hell? I’m always so uptight; I let loose a bit. It progressed a bit further and he ended up rubbing my back and my sides…under my shirt. (I’m thinking do people do this on the first date? I must be quite out of the loop or a prude.) Since in no way was I going to end up sleeping with him that night, I told him we ought to be leaving when it reached that critical point of there being nothing left to eat or drink and his arm strongly around me looking me up and down. He walked me to my car, but not before kissing me (and by kissing, I mean KISSING) further along the street, on the corner, at my car, etc. I think I was a little overwhelmed by this and perhaps he sensed it (I would cut off the kisses when the walk signs were on), but I’m really not sure how common this practice is or what he should expect. Anyway, I went home rather wired, but by the next day, man, I started thinking about that strong hand on my back, the way he looked at me, his eyes, his soft lips, not to mention the fun we had, his generosity and quite frankly I began regretting that I cut off those kisses so early. I couldn’t get him out of my mind. I wrote him two nights later thanking him and telling him I had a great time, hoping it would start a conversation. I didn’t hear from him for another three long days when he wrote me a very nice note telling me that he was kind of seeing someone else (nothing serious yet, but…) and didn’t think he could start something with me too (in his defense, we had kind of been planning on getting together for about 2 months, in that time this other woman apparently showed up) and his life is kind of complicated, etc. He sounded very sincere. He said I was very sweet and very pretty and wished me luck… So what is it? Have I been played? Does this chick really exist and is life complicated? Did he really like me? Did he just want to see how far I’d go? Was I just not “into” him enough? Normally I would think “creep,” but there’s something about him I cannot shake and I keep thinking about him and his strong arms in the worst way. And he has no idea.