Perhaps you've gone out on one date. Things went well and you were hopeful that another date would be in the cards. But suddenly, you can't find the guy. If it takes him two or more days to call you back or return an e-mail, this could be sign that he doesn't have the time for a relationship with you. Remember the old saying, when a guy tells you or shows you something, believe him. He's showing you he's not worth your time!