['I think the movie would have been fun, but I felt much better honoring my prior commitment and being faithful to that friend.', 'Sounds like you made the right call', 'I think so and my friend really appreciated it.']
I bet, it can be really disappointing when people bail on plans
Just last week I had a conflict.  I wanted to go to the movies, but I already had plans to help a friend move. I stayed faithful to my friend and helped him.