I think you’re right.
Well, we were warned what sort of man Cruz was, when it was pointed out that Cruz had no friends in the Senate. How does one work in the Senate and get no allies?
By doing stuff like this.
Trump dodged a bullet: if Cruz endorsed, there would be some obligation, and Cruz would still be a back stabber. He’s clearly out in the open now.
I’d guess it doesn’t take long for someone like Trump to detect a fraud. From my perspective, Cruz wore it on his sleeve.