Dating

We met and I thought we had a connection, what's the deal?

Met this guy at work, we don't work together, he was doing some work here he works about 45 mins from here. While he was at my job everyone thought there was a spark between us, he would flirt, go out of his way to talk to me and look for me. After he was gone we texted a few times, I initiated it. I had told him that I thought he was great and that we should get together for a drink or dinner one day. He was all for it, didn't speak for a week after that and I texted him to see if he was free took him 1 day to answer and said he was busy but he would let me know about the following weekend. In the mean time I accidentally sent him a pic of me and my friend that was suppose to go to her and went to him. I apologized for the mistake and he said it was fine and that I made him smile. I told him that I would send him a pic of myself one day and he said he would like that. I texted him about 4 days later to ask if he would be busy Sunday and he never replied, finally I sent him a message saying that I was sorry if I was bothering him. That I thought there was a spark between us and that I was wrong. I just told him that I had a lot of respect and admiration for him and wished him luck with his job. Still 2 days later no respond. He's an educated man, I would have expected at least an acknowledgement. I feel stupid because I thought there had been something there and so did everyone else, I took a risk even asking him out and then nothing?
We met and I thought we had a connection, what's the deal?
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