How often should I hear from him? ?

I’ve been set up on a blind date more or less. His sister and mine are playing match maker. He sent me a fb friend request, I accepted. His sister messaged me to let me know who he was, for whatever reason bc I’m not close with her at all. . He asked me out to dinner, coming up this Sunday. We talked off and on for two days and now it’s been two days of not hearing from him, is that okay or maybe he changed his mind? Maybe I’m overthinking? We are both adults and are busy but I don’t want to be bugging him. I’ve sent one message in the past two days just saying good morning and no reply? Both 30 years old by the way

How often should I hear from him? ?
Post Opinion