He cut short an interview with national broadcaster RAI after his earlier press conference clash with Sky Italia analyst Mario Sconcerti.
The incident arose from Mourinho's pre-match comments comparing the amount of points he has achieved with Inter compared to that of Mancini's first season in charge.
Sconcerti raised this topic during the post match interview, which inflamed Mourinho.
“I know that you, Mr Sconcerti, are friends with Mancini and this is why you ask me these questions,” he snapped.
“You are not my friend, you are a journalist. If you invited me to dinner then I would not attend.”