"I was disappointed when the move never happened," the 20-year-old said. "I thought there was a deal in place but I still had four years left on my contract and Genk wanted too much money for me.
"Still, maybe next year I can progress to Chelsea or another team.
"I don't feel I have to prove everything in this one game. Chelsea will look at me 20 or maybe 30 times. But I do find it annoying that everyone in Belgium is watching me."
De Bruyne scored five goals in 32 appearances for Genk last season.