Yes, guys do mention names for some reason. Girls are less likely to mention names especially if the boy was the one who said “no” to a second or third date.
Maybe boys want feedback from other guys. They want to hear what their friends think about the girl, if she is pretty enough, rich enough, etc. Or if someone else checked her out and got more information than they did. It is only when they start to get serious about a girl that they clam up.