The fullback is close to the Barcelona transfer target.
"I missed him, he's probably my best friend at the club. I was very happy to have him back," Moreno told the Daily Mail.
"It was tough for him.
"He had a bad time but it's over now and I know that he will give everything for Liverpool.
"It would be a dream for any team to have him but he stays with us. Liverpool said no and it meant no. It's just a huge boost. We have a lot of quality here now."