Ok , I try my translation :
In the beginning Roger was playing very cautious, he was trying to keep the ball in play . Thats why we had long rallies. He also hoped to hold all his service games and he did it because he served very well, lot of 1st serves in, which meant I didnt have much chance to play in return games.On my own serve I fought of course, but he always put huge pressure on my 2nd serve.
Bounce here is very fast,sometimes I even couldnt play second shot if Swiss returned right on my baseline. Right when I went on court I felt how hot it was,there wasnt enough air for me.I ran few games and at 2-2 I already felt I was tired, but whole match was still to play.
At this moment I didnt know how I could keep myself in match, I had to run all the time because Federer plays sharp and fast.Of course if you are very fit and already played few matches on central court you can do it.But I wasnt ready to do it in second round.Yes, Federer looks very good at the moment, but I dont think he can win all matches here in three sets.Other guys are adjusting to conditions and his game.I think they dont allow Roger play like I did.
IMO, he wasnt bitter at all, he was just disappointed how he played.
Thanks for the translation. It all makes more sense now.