<human>: Can you give me a shortened version of the text?

I was using my girlfriends tablet and was about to check my email when I noticed in the trash of her email that she had sent out some emails to random hook ups on craigslist. She sent out to different emails to these anonymous CL email address talking about her wanting to give oral sex in very graphic emails. I'm kind of shocked about this and I don't know what to do. We've been together for a year and a half and I've never thought to myself that there was any indication of her cheating on me.

I don't mean to sound naive, but I just don't know if she did it or not. Even if she didn't do it, if she just reached out to these people for some kind of thrill with no intention of anything happen, I don't know how to feel about such an inappropriate email getting sent out at all. I feel bad that I stumbled across this. I have complete trust in her and I've never felt like she might cheat on me. She's very in love with me and always just wants me around. She's kind of needy for me, so it's hard for me to believe that she did it. Even though we live together I never go through her things and I feel bad about finding this, but I can't believe that I found something like this.

Obviously I should confront her about this, but I don't know how to feel. I feel betrayed, but even if nothing happened; if she was feeling bored, or drunk, or something it still hurts. What should I do? This isn't appropriate in my opinion.
<bot>: found emails my girlfriend sent to hookup with someone on craigslist. I don't know if it happened or not and I don't know how to feel even if it didn't happen.