Khun is probably the biggest contributor to Rachel turning into an even more sinister person over the course of season 2, huh.

He toyed with her too damn much...first by keeping her by his side for 6-7 years, then by constantly tricking and taunting her on the Hell Train...I’m honestly surprised he didn’t realize she would snap.

It’s honestly kind of cute how naive Rachel was? She expected him to play fair again and again and...of course he didn’t.
I have a lot of mixed feelings about the whole situation, because while revenge tends to be validated in ToG narratively, and he clearly had good reason for

it, the sadistic (?) way he went about it was clearly for his own pleasure. That isn’t to say that she didn’t deserve it - it’s just that when the beast he provoked bared its fangs at him at the end of season 2, it wasn’t completely uncalled for.