something happened. some dude left her feeling powerless. shes reaching out to you hoping you will respond (in any manner/form) like a salivating dog so she can reclaim some sense of power and feel attractive again. this emotional position does NOT, I repeat NOT guarantee you a lay but if you start being to ready, willing, eager and available, it reinforces that she can do this to dudes. If you must text this type of woman back, please ascertain if she is ready to get nekked. If not, leave her be.
I wouldnt text back. she had her chance and she moved on. done & next