Yep, and I believe that is why he hates Trump so much. I think after Indiana, one of Trump’s people cut him and deal and said that they won’t run with the Inquirer story and squash it if he agrees to leave the race. With no other alternative, Cruz had to leave in order not to be publicly crucified.
He now has sour grapes over the whole thing.
It's called politics. As has been said many times in the past, it ain't beanbag. He needs to get over it and put on his big boy pants if he expects to succeed on the national stage.