How should you cancel a date with your girlfriend?

It had better be an honest excuse for not keeping the date. Have to study for an exam; you're grounded (and are); your parents want you home because relatives are coming over; a special occasion with family; you're sick, Bad excuses are: You want to go out with some of your male friends; you just don't feel like going out, etc. Phone her and be honest and if she is mature she's be able to accept it. You should always, if possible give her time to make other arrangements for herself. Being sick can't be helped, but other excuses are just not acceptable.

Answer

Depending on circumstances, you might be better not to phrase it as cancelling the date but instead as rescheduling. "Is it ok if we see the movie on Saturday instead of Friday?" Still a little bit awkward, but not as bad as cancelling altogether.