Humphries also lost the opportunity to represent England at the World Cup of Darts and was devastated speaking post match.
Cross finally seals maiden European Tour title and World Cup of Darts spot after European Darts Grand Prix win
“It hurts. I’m devastated, but I will bounce back,” said Humphries.
“This is probably one of the toughest defeats of my career. There is no other player who wants to put on that England shirt more than me.
“I just can't seem to catch a break at the moment. I’m trying my best to win these tournaments. There was a lot on the line there and I showed a lot of bottle to give it a good go, but fair play to Rob, it was a fantastic performance from him."