Come here. Let's get you dried off. I'll grab a towel and turn on the space heater. Here. Sit down. Would . . . would you like me to hold you? [awkward laugh] Okay. Here. I'll wrap a towel around you so you can stay warm.  

(sweet and comforting)

He grabbed your wrist? This wrist? Let me see it. I'm chill. Just let me see it. Now.

(shocked at first, getting angry but trying to act calm, stern when saying "now")

No don't give me that. Nothing you say can make this be okay. I don't care if it was an accident or a mistake or whatever dumb excuse he gave you. He hurt you. No one gets to hurt you. 

(about to explode, upset and getting increasingly angry, serious at the end)

{You are tired of her making excuses for her abusive boyfriend}