Yeah, she's going to keep pushing your buttons and trying to get you to exhibit more of the same behavior that she can then use to justify wanting to D. You were probably too wordy with the text exchange. She is clearly concerned on some level that you could be seeing someone/looking. Her use of the word "yet" in talking about her not seeing anyone was just to try and poke you some more and draw anger/jealousy out of you.
If you can continue like you have for the most part (based on the majority of your recent posts) to stay cool, confident and calm when she's spewing/testing, it should start to sink in to her that she's not going to get the reaction and fight that she was expecting/looking for. She wants a fight because it makes her feel better about wanting to end things and she may possibly be experiencing conflict or doubt on some level about her desire to do so. Don't give her the fight. Always give her the best you. Always walk away when you want to speak out of anger/frustration/hurt.
M: 40 W: 37 T: 20 MR: 13 S13, S9, S4 BD: 1/29/18 Sep: 4/23/18 (I moved out) 8/24/18 I come home, she moves out
If you want to get out of the hole, drop the shovel.