I think it's more than obvious at this point that Fed and Rafa do like each other and get along well off the court, much more than Andre and Pete did. However, that quasi-friendship wouldn't be there if they hadn't been forced to spend time together being both the constant rival of the other and the faces of the sport. It's a friendship that was forced by respect despite their rivalry. And at the same time, that rivalry has prevented that friendship from being 100% honest, because at the end of the day, they started as rivals and will never be able to leave that part completely aside until their competitive careers end, so Andre has a point.