Dude, seriously. Relationships are all about trust and you clearly don't trust her any more. It's like, "oh no need to be upset, I didn't kill your son. Sure, I fired, but I missed, so it's all good". Yeah, not really.

It's not even like she was drunk or vulnerable in a moment. She clearly went for it with a random dude. Doesn't get much worse than that.

So you agree that there was a chance she would've slept with him if he had shown up? That's still cheating. She told me very clearly the week prior that she still didn't want to kiss other guys. She told me that she still only wanted to sleep with me and everything seemed fine. She also told me that I was the best guy she ever slept with. Now I think she was just manipulating me because she wanted to sleep with a bunch of guys inclduing me. All she had to do was break up or convince me to be in an open relationship with her if she didn't want to be in a closed relationship with me anymore.

I think you're just being paranoid. If you don't get it under control and fast, you're going to ruin this great relationship.

These things are touchy.

Everything was perfect the week prior. She wants open sex? Then don't agree to be in a closed relationship with me. If we were in an open relationship then I wouldn't have cared at all.

Wait, what? How is it his fault? Seriously. That could be you and a random girl. She's the only one to blame.

I have only bad advice Luigi, but what I do try to offer is information if I can so tread lightely with me.

Yes, she was clearly going there with the intent of cheating, had the guy been really mr. perfect (sweet and sexy).

You have to ask yourself the question. Why would she tell you nice things and tell you everything was fine when it wasn't? What do you have that she wants, and why is she lying to you?

You're asking me why she didn't break up or try to convince you, there ARE reasons, we just don't know what they are.

Baalz thinks she's too pussy, I can't buy that. You guys have been together for 4 years. Either she wants to keep the relationship, might hope for engagement, thinks you're good, enjoys the intimacy, but something is wrong in your sex life and she is not comfortable mentioning it, otherwise she would have asked you about open relationships. She probably assumes you're against it and feels uneasy talking to you about it.

Imho there is a communication and sexual disconnect.

How can a great relationship include cheating? She even said she was only going to sleep with him because he asked her to BEFORE saying she wasn't really going to sleep with him. I can't trust her ever again.

Unless perv knew that they were in a closed relationship, then he'd also be to blame.

An attempt to cheat is still cheating... dump her ass and move on. Not worth your time!