Despite reports of a fall-out between the duo in Mourinho's final weeks, Terry says they're still in regular contact.
“The big managers and when I look in world football, he is probably the biggest, they make the big decisions," he told Sky Sports.
“I didn't ask why he made that decision. I went to training the next day and just got on with it. There was never a problem.
“I'm still in great contact with him now. Even when I joined Aston Villa, he was the first one to text me and congratulate me and said he would be a Villa fan.
“That is what he does. When he came back, Rafa (Benitez) hadn't been playing me, but he was texting me that summer telling me to work hard, I was his main man.
“I was out for dinner with my wife and kids and had a glass of wine. He called me and after that conversation when I went back to the table I said no more wine. I wanted to train three times a day because he knew how to press my buttons and get the best out of everyone.
“You would be at home and out injured and he'd send you a text to tell you how important I was. He did it with the senior players at Chelsea, not just me and then we ran that dressing room for him."