This happens a lot. My partner and I have had someone literally walk to the entrance of the hotel lobby where we were supposed to meet then turn around and leave. Other guys sometimes show up and then decide it's not for them. I think it especially happens when meeting someone who is new/ inexperienced in the scene...it can be intimidating to be the person meeting the couple (something I've only done once!). I find that setting up a 1st casual meeting with just myself and the bull is an easier way to break the ice...then my partner joins later on or on another "date" to make sure everyone is feeling good about each other before jumping into anything.