Pissed off? She was pretty pissed at one point. But she's had a lot of time to put things into a different perspective. Look at the world from different colored shades. So Rey just shrugs.

"Once. It didn't work out." As it turned out, the guy had other bodies to hop into because he wasn't much unlike her. He was just more machine than human. But that's a whole other story altogether. "To be honest, it was a long time ago. The anger that was once there has since... turned into something else. Am not going to be a victim, crying about how terrible and unjust it was. It happened. Am over it."

Probably.

There are some things you're just too old for. Having over two hundred years' worth of people's memories? It makes you grow a little tired of some shit.