A Chemistry No-Show?

There was a potential lobster on Chemistry who started the process with me. He got the ball rolling, saying he was interested in me. Then we went through the process: essentials, the short questions. Then nothing. Is he waiting on me to send the first email? I will not do that. I am disappointed though, because I thought he seemed nice and attractive. Did he not like my short answers to his questions???? This is really annoying.