TMZ asked the superstar about some recent photos which surfaced and had fans worrying.
They appeared to show newly engaged Bieber and Hailey Baldwin alternately crying and comforting each other.
“You got good days, and you got bad days.” he said. “It’s not real if it doesn’t have any bad days.”
According to Amazon, the book, which is subtitled “Facing the Complexities of Commitment with the Wisdom of God,” “shows everyone — Christians, skeptics, singles, longtime married couples, and those about to be engaged — the vision of what marriage should be according to the Bible.”