I agree with this generally, except Bash could have also brought that up privately the first time they spoke. He could have said if she didn’t want to stay they could discuss her exit. She really would have no reason to sabotage him if he wanted to keep going Vegas and she didn’t have any interest in continuing GLOW at all. I guess Debbie kind of forced his hand by taking a major risk in front of Geena Davis. Really though, I tend to think this is an error by the writers. They want to introduce conflict but in truth both Bash and Debbie could have easily figured out they could go their separate ways. Then again, Debbie and Bash tend to do the exact wrong thing, so maybe them getting into an irrational and pointless fight is just in keeping with their characters.