The former R’s manager was relieved of his role at Loftus Road earlier this year after allegedly divulging confidential information to the media.
Sousa guided the London club to 7 wins in 26 games, including a 1-0 victory against the Swans in which Jordi Lopez provided the assist for the winning goal.
“They made a statement on the club website and sent me a letter saying why I was leaving,” Sousa told Wales Online.
“But I don’t agree with it.
“It was about me divulging sensitive information. I don’t know what that is about.
“What I know is good things have happened at the club and the Mittal family is the best solution for their future, in my view,†said Sousa.
“I hope everything comes good for them. Not against us obviously but, after that, I hope they resolve their problems.
“But they are not my problems anymore.
“I was not surprised when I left the club so soon.
“I don’t like to talk about these things. I have already said a lot and the truth will come out in time.
“In Portugal we say it’s like getting oil from olives. Sometimes it takes a little longer to get the oil but it always comes out in the end.
“I feel the same about this game as I do the others.
“Of course it would be nice to get a result against them,†he said. “Not just because it is against QPR but because it is something we are looking for and something that can help us climb the table.
“I want to win every game. But it would give me a lot of satisfaction to do it against them.
“I am happy with what I did at Rangers because the recognition has come from my former players, both during and after my time there.
“As a manager my first job is to increase the quality of my players and, when I see they are happy because they felt they were developing every day with my training sessions, part of my job is done.
“The supporters also gave me a lot recognition after I left. A lot of people were saying good things about me and I was happy about that.â€
