I think Jeska came to me to show me the errors of my violent ways, when she flew into a Secure Ship explo mission to prevent the bloody carnage i usually leave behing after some unknown vessel claims to be attacked by evil guys. Maybe Jeska knows that those "innocents" are actually experimenting on unborn babies.
I met Jeska two days ago and went through great lengths to lure an enemy ship within her range, to see if she'd attack it or get attacked. Neither. She just happily flies in torpedos and takes no damage, and beams go right through her. I believe its a fata morgana ship.