My ex reached out after we argued a couple months ago because she was lying to me and she in turn responded "never speak to me again".

She says "Hey, what's up" out of the blue. I let it sit for a few days - pissed she has not acknowledged her transgressions.

So I finally called my ex out on her cheating (idk if she did, but my theory is she was enthusiastic with me the last time we fucked to mask a potential pregnancy and make me raise someone else's kid if he got her pregnant since she can't take BC or plan B)

She responds that I am so wrong it is actually funny and that she thought I had changed, but she guessed wrong and she tried to be nice but it is better we dont talk. We argue alittle. Then she texts an hour later saying she thinks we need to have a conversation because there is a lot of misunderstanding and she feels bad that I have these bad emotions toward her.

What's going on here?