We've reached the point where Danny and Ethan need to pin Sal and Amber and for them and Dorothy to pound some sense and perspective into both combatants' heads with a suitably heavy and blunt instrument.
Sal - Yes, Amber stalked you and got you into the vigilante life. However, she didn't force you to do anything. You are the one who prioritised your anger and sense of violent grievance against the world's injustices over Marcie's needs. You decided that beating on bad guys was worth even her losing her job.
Amber - Yes, your life has been shit but Sal is not your enemy; Blaine's abuse and the damage it did to your mind and your emotional control are your enemies.
Both women have to understand that the other is not their enemy and never has been. If they can't tolerate each other enough to help themselves and the other heal, then they need to agree to keep away from each other in future.
You'll notice that I didn't address the issue of what happened that night at the convenience store. That's because, in a very real way, I don't think that either girl was entirely themselves. They were both in the process of finally coming loose from the end of a long tether and, whilst their choices were their own, I'm not entirely sure that either were capable or competent to make reasonable or proportionate choices at the moment.
