Why didn't Dean Ambrose help Roman Reigns backstage against Braun Strowman?

because its raw, and creative in raw doesnt like to write good stuff.

dean ambrose has to get ready for his match...

It wasn't in the script.

Because no one likes Roman Reigns

Idk

Ambrose knows better -- he wants to go home to the arena dumpster without broken bones.

I wish his was for real, and there would be no more Reigns again. I just loved it when he Strowman tilted the ambulance like that XD!

Dean Ambrose was busy preparing for his Champion vs. Champion Match against United States Champion Kevin Owens. I didn't see Seth Rollins or any other Wrestlers run back there to get in Braun Strowman's Face either.

Seth Rollins also didn't helped his Best Friend like Roman Reigns as well. Both them should've helped Roman Reigns But, They might be busy with something else.

Roman Reigns also might tell his Brothers But, He really wanted to do on his own.

Dean Ambrose knows better.

Dean Ambrose learned from seeing what happens to those who interfere, such as Randy Savage, while severely beating Hulk Hogan (to paraphrase Vince McMahon on commentary) smackdown Brutus Beefcake, and from seeing Kurt Angle, while beating up Eddy Guerrero, throw away Rey Mysterio.

Dean Ambrose is smart enough to not get involved.