The Da Silva brothers joined Manchester United in 2008 but Fabio decided to move on last summer in search of regular football and joined QPR on a season-long loan deal.
Fabio reckons the change has helped both himself and Rafael, as they can now concentrate on their own games.
He explained in The Independent: "Now we have split, it's better. I tell you, when me and him play together we look at each other. When I make a mistake I'm not saying he feels - he doesn't lose confidence but he gets less [diminished] a little bit.
"Now [this season] when he plays and he has a good game and another good game he gets confidence. When I was there sometimes I was not playing or not playing well. Maybe he feels that I am down... because we lived together [in Manchester].
"Sometimes when he plays he is happy. Sometimes when I play I am happy. Now we are getting more mature. He is there. I am here."
Fabio added: "We discuss everything together. He knew I wanted to leave United to play more games. To play consistently. He agrees with me. He thinks it's good for me to leave United to play more football. I enjoy it.
"I know it hasn't been a good season for Queen's Park Rangers but I try to improve and to help."
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