Bella's impression is of someone who has actually practiced aikido at some point. (She's going to have to think of a place she could reasonably picked that up; Youtube demonstrations wouldn't give her muscle memory.) Also someone whose response to trauma is mania rather than withdrawal. She jabbers quickly in grammatically incorrect sentences and has to expend a square to actually produce the name of the throw she used. She waves her arm wildly when asked where the gun was fired. "It didn't hit me but oh god it was so loud and I thought he got Bridget and I just it was like oh my god!" she exclaims, trembling for effect.