How to deal with an extremely pushy seller’s listing agent pressuring me to sign and semi-stalking me?

Situation: I am looking into selling my home and started meeting with potential listing agents. One realtor I met was very pushy and even visited me at my home to take pictures of all my appliances. She suggested listing the property for about $500,000 below market value, which raised suspicions that she might want to buy it herself and flip it for profit.

During our meeting, she pressured me to sign a listing agreement immediately, but I declined and said I needed time to consider. Despite this, about a week later, she emailed an e-sign document for the listing agreement, even including my full name which I hadn’t disclosed to her and continues to call / email. I’ve encountered pushy realtors, but this one is over the top and borderline crazy.

Given that this realtor visited my home and took pictures of my home and snooped up my personal information, is there a possibility that she can do something more sinister like sabotaging my listing (?) eventually when I want to list with another agent etc? How do I protect myself in this situation e.g. drafting written documentation to spell out that I did not agree to anything…etc?