Yesterday she told me one of her friends told her to cheat on me (he is across the country, so threat is low). I responded with ok.

Today she texted me again, and when I reply with short texts she said I sounded angry or mad (her trying to make me fall into her frame). I ignored her question and told her "you're friends with cheaters and a guy that told you to cheat. You don't make the best life decisions do you?", expecting her to qualify herself.

She just said I don't think we should text. You sound mad. I replied "suit yourself" and went back to studying.

She just sent me another text saying I sound mad. Asking if she did anything wrong?

I'm done talking to her for the day (gotta work), but I'll just leave this here to see how I should reply. It's not the first time she interpreted my short texts as me being angry.