But, depending on the details (which we don't know) she is either involved in a loving, caring relationship with a younger man, or she is a predatory ghoul raping and stealing the innocence of a young boy. She is a teacher accused of having sex with a minor. That is statutory rape, and there's a reason why it's against the law.
If she wants a "loving, caring relationship" then she can wait until it's legal, and when she is not his legal guardian.
She is a teacher accused of having sex with a teenager.
If he is 18 or 19 (or 17 in many jurisdictions), she has broken no law.