Trump is more angry about the Cruz remarks about him at a private meeting with his donors. Trump sees this as crossing the line giving him license to attack Cruz regardless of the issues. Today, he said that Cruz doesn’t play well with others given his status as a pariah in the Senate. As a result, he doesn’t think Cruz can get anything accomplished should he get into the WH.
Seen that too, Cruz never directly says it’s Trump, he could have been talking about Clinton or anyone else, but that don’t fit the media narrative...