Arroyo spent part of pre-season working with the first-team before suffering an injury and then leaving on loan.
The Colombian defender, 20, has spent the season at Mlada Boleslav in an attempt to land a British work permit.
“The one I spoke with the most was Fabinho because of the language and because he was always by my side in the dressing room," Arroyo told Antena 2.
“He was the first person who approached me with words of encouragement when I had the injury.
“At Liverpool they have all been incredible people and they have helped me a lot.
“I didn't get too close to Jurgen Klopp because he speaks English and although he was trying to speak to me and be attentive to me, communication was nearly impossible."