Kim, 33, got married to rapper Kanye West, 37, in May in a grand ceremony in Italy, reported Contactmusic.
"He sent me a long email the morning of the wedding saying that he was going to leave. There was no fight," Kim said on a chat show.
"I just thought, 'You know what, this is my day, I'm not even going to worry about it.' I totally understand that he wouldn't want to see a lot of people if he was feeling uncomfortable and you can only pray and wish that someone would not miss out on more memories in life, because life is about memories," she added.