Anarax, I've got a question which I can't figure out what's been posted so far. I may have missed it, and if so, just let me know.
In the O/P you described the situation, and how the thing seemed to escalate, with harder and harder techniques being exchanged, etc.
My question is this... Did anyone ever pause to ask a question, or to offer instruction?
Just curious, but this was an obvious teachning moment, definitely for your training/sparring partner, as for her sparring defense work vs. counterpunching people..... and maybe for you as an instance where your ability to teach could be improved?
I've had this type of thing happen before, and back int he day, if they wanted to just amp it up, I'd answer them, going to the same place they would and ending up hurting feelings, marking someone up, generally not being a win-win training situation.
Note: You can "lose" a sparring match and yet still "win" in the gaining of knowledge.
What I've found is a better way is to point out, right when it starts to amp up, that it IS getting more intense... pause just for a moment to make sure both sides are very aware that things are turning in that direction, and then literally stop for a short time, perhaps 10 seconds, and verbally recognize what's happening (she's getting frustrated as she can't make contact, you counter and pop her) and use the moment to teach her how to deal with it. Dealing with it could be anything at all which would improve what she's doing, such as recognizing (she may not even be aware) that she's telegraphing, or making sure the person knows where they leave an opening as they execute a kick/punch/technique, etc.... or how to move to set-up better... whatever it is.
So, did you talk about it at any point, or only after?