I met a guy on a dating site about 2 weeks ago, and we really hit it off. We've exchanged around 40 messages and have so much in common. The thing is, we started a game in the very beginning where we asked each other personal questions right away, so we kind of know personal things about each other, but not as much surface-level things. He has responded in just the way that my ideal person would and has encouraged me to be open and I've done the same with him. He said that he thinks we would understand each other and basically that he's really interested. He opened up to me and said that the beginning of relationships are difficult for him and that he can be really anxious. Last time I sent him a message, I sort of hurried since I was tired. He hasn't responded in 3 days and I'm worried that I could have said something in a way that may have made him anxious. Plus, I also asked to talk to him on the phone and/or meet. He usually says something like "thanks for the wonderful message. I will respond by tomorrow night at the latest," but this time he hasn't sent anything. I'm sort of freaking out because I really like him, and I know he has been online multiple times and has viewed my profile too. Should I send another message? If so, how long should I wait?