Call him and ask if the plans are still set or leave a message to that effect. Don't sit and sulk by the phone--if he doesn't return your call I'd go ahead with other plans or errands you need to do. As well as doing what the above poster said, if your boyfriend said he was simply too busy to call and expects you to second-guess this is a crock! When you love each other there is that 2 minute time where he could phone you to let you know if your date is on or off. It sounds like this has happened before. If so, don't be there one day when he comes around to keep a date. Sometimes giving a person a taste of their own medicine is worth more than words can get across.