It's okay you don't make every event for every friend.
Chuck has RSVP'd to his friend Juan's dinner party, and a week later is invited to another one by his friend Dave for the same night.
Chuck wants to please his friends.
Chuck thanks Dave for his invite, but tells him that he already has commitments for that night.
Chuck leaves Juan's dinner party early to go to Dave's.
Dave tells Chuck that it isn't a problem, and they catch up at a later time.
Juan feels like Chuck has chosen Dave over him.