He wanted a break....Plus the Fed had to keep him sweet incase he did decide to sling his hook over to WCWwas he injured/ did he want a break/ did they want make him fresh when he comeback or did they want shawn to have his time? did they even try to change their plans or did they just went along with their originals.
Which is ironic considering one of the reasons Bret left is cause WWE was changing the direction they were going(by heading into attitude era) and Bret didn't like the stuff they did(the 14+, some could be almost 18+ content)I am pretty sure this was during the time when Vince and co wanted to push new stars and make their own new stars, seeing as WCW was buying all the older, bigger names. The WWF had to think quick and make thier own (HHH, Mankind, Taker who was still over but do things like the ministry, Kane, Rock, Austin) and not rely on the older generation so much.
This is such a major misconception by people as Shawn Michaels and Bret Hart were still friendly at WrestleMania 12 and Bret Hart had said to Shawn Michaels that whilst he was away from WWE he wanted to build their potential rematch by talking about Shawn Michaels in dirtsheets and such. This is when the problems began because people really bought into Bret Hart walking out of the arena after the Iron Man match at WrestleMania 12 and everyone began speculating that there was real problems but there wasn't.He had been fighting with Vince and Shawn for so long, Im sure he wanted out.