@Admiral said:
And I was told if I file a lawsuit against her, I'm fired. This is Texas, so yes. They can do that.
Depending on your state's laws, it may be required that you report a felony. And what she did may qualify, so you may be legally obligated to file a criminal complaint against her.
If you get fired for filing a criminal complaint for a felony, you can likely seek recourse, despite Texas being an at-will jurisdiction. I believe there's a public policy exception to that rule where you are required by law to take an action, and are fired for it.