His father and agent Hans confirmed earlier on Tuesday that the move had stalled, with the two clubs unable to agree a fee for the Dutch international.
The Dutch champions are believed to be looking for a fee close to ‚é¼15 million for their young forward, but United are only thought to have offered somewhere between ‚é¼7 and ‚é¼10 million.
Robben is still hopeful his dream move will be completed, saying: "It could be I stay here.
"But in the world of football everything is possible and it could happen very quickly.
"What today is coming to end, can go through tomorrow.
"It can still go in any direction. But at the moment PSV and Manchester United haven't agreed anything.
"Of course I don't like that the deal hasn't been completed and I could jump up and down, but that will not help.
"I haven't got anything in my own hands. The clubs have to agree first, then I come back in the picture.
"It would be fantastic if I could play for Manchester, but at the moment I just have to wait.
"For now I have to focus on the football."
Robben travelled to United's training complex last month and it seemed a move was imminent, but PSV's demands could stop the deal in its tracks.
PSV president Harry van Raaij admits that he can understand Robben's disappointment.
"Of course Arjen will be disappointed," said van Raaij.
"He had already visited Manchester United and I had agreed a deal in principle with Peter Kenyon for him to join them in the summer.
"What I don't understand is the reason why their approach changed so much because when the offer came in it was about half of what we had spoken about.
"Given the difference between the two offers I do not see any way Arjen will join them in time for next season.
"Everything changed, I read in the newspapers that there are some problems at the club.
"Maybe that was part of it or maybe it's because Peter Kenyon left and David Gill came in, but I don't know for sure.
"I have dealt with Manchester United over the transfers of Jaap Stam and Ruud van Nistelrooy but the way they have handled this is very different to the way they have done it in the past.
"At least there is no question mark over Arjen's talent and I'm sure other great clubs will be in for him as well."
