Save all her texts and emails. Do NOT delete them but don't respond. She thinks or wants you to write back some scathing comments so she can have the "upper hand" so to speak, so she can know it is getting to you and you're thinking about her, and depending on how vindictive she is, she's doing it so that you WILL write back and she can have something to take to her attorney. Honesty, it sounds like she's digging herself into a hole, willingly and quickly. Her problem, not yours.
The lesson here is to not write back. At all. You initiate contact with her and the rest is history.
