Why did Adam eat the forbidden fruit?

Les explains that Adam faced a choice between the beautiful creature, the wife God had given him, who had already sealed her condition, and remaining obedient. Rather than lose her, Adam knowingly, of his own free will and choice, chose to stay with Eve, so he ate. This was in absolute violation of the Word of God, beginning the human dilemma. The moment he ate, the process of death began in his physical being—cells dying faster than produced—and he immediately lost fellowship with his Creator. His soul, the mind, will, and emotion part, immediately became a sin nature. Les notes Romans teaches sin and death came on the human race the moment Adam ate.