No communication after a date? Is this always a bad thing?

A friend and I have liked each other for awhile now, but only started spending individual time together recently. I haven’t really questioned whether there is an attraction but perhaps I have been wrong!

Anyway we went out together the other night, although we had spent time together as friends previously and always seemed to have a great time. We got quite ‘close’ but nothing happened (which I wouldn’t want yet anyway)..

To get to the point, every time I’ve been with him he has always said what a great time he has had, etc. Anyway, the next morning I sent a casual message saying I had a great time… but I had no response.

Have I been reading the whole situation wrong? Is no communication the day or two after the first date a telling sign? Usually I am pretty able to tell when there is an attraction but perhaps I’ve missed the boat here.