Moreno took over from Enrique in June when he resigned to care for his nine-year-old daughter Xana before she died of bone cancer in August. The latter has now returned after Moreno guided to Euros qualification.
"I am a person who usually steers clear of controversy but today I fell obliged to give an explanation because this is about someone I worked with for many years.
"I am the only reason why he [Moreno] is not in my staff.
"The fall-out comes from a meeting we had on September 12 at my home. It's the only day we had contact.
"We had a 30-minute meeting and I understood that he wanted to take charge of the team in the Euros [next summer] and to then go back to being my No 2 afterwards.
"And in that moment I try to put myself in the other person's shoes. I understand that he wanted to take the opportunity of his life. I understand that he is ambitious and that's a quality to admire but, for me, that's also disloyal and for me that is a defect.
"I understand his position but I don't share it and I would not have done that.
"I said I wanted to come back. I then called every member of my staff asking for their opinion."
Asked if he felt more let down by Moreno as a coach or a friend he added: "I have no reason to criticise him professionally. As far as the personal goes, I had no doubts until the words said one thing and the actions said another. I am not the good guy in the film. But I'm not the bad guy either."