As we reported last night, CM Punk was said to have told Vince McMahon on Monday night that he was leaving Raw and got on a plane and went back home to Chicago. Dave Meltzer noted on the Wrestling Observer Radio program that WWE did not see this coming from Punk, however, the company did expect him to leave after his contract expires in July.
It remains unclear as to why Punk decided to leave on Monday night, and it's unknown whether or not a singular incident took place to motivate his decision, but it is being said that Punk in general seemed frustrated in WWE over the course of the past year. Punk wanted to be the top guy in the company, but knew that would never be possible as long as John Cena was around.
Punk has reportedly saved his money during his time with WWE, has made a lot throughout the years, and feels he doesn't need to be in WWE if he doesn't want to be there.
As for his creative plans on Raw Monday night, PWInsider.com reports he was either supposed to lose a bout to Antonio Cesaro after interference from Kane, or he was supposed to cut a promo about his involvement in the Royal Rumble match. Punk was also slated to face Triple H at WrestleMania 30, but it appears as if that plan will be nixed, and it's very possible Daniel Bryan will replace Punk in that match, which is likely why the opening of Raw was booked with both Bryan and HHH.