It's good to attend significant life events of your friends.
John friend is getting married this weekend.
John wants to go fishing this weekend.
John goes fishing really early on Saturday he leaves early goes home and gets ready for the wedding and shows up on time.
John knows his friends wedding is Saturday at 5 but John decided to go fishing and skip the wedding.
Johns friend is really glad that John showed up, and they remain friends for many years.
Johns friend is really disappointed and doesn't talk to John anymore.