Getting extremely close advice needed (33y pretty hotwife in the making)

We started when having sex talking about our fantasies. Me calling him a different name and how he is fucking my husbands pussy and hubby telling me the same. Cheating made up stories. A different name and how much better she is than I am etc. then his buddy stayed over and I secretly watched him jerk off. Told hubby about it. Then we started looking for couples online. Went to fantasy fest and I jerked off a few stranger cocks on my boobs and it went from there
 
Update:

Things are moving very fast atm. I just intercepted text messages between my gf and a friend of her.

So basically we gave each other a free card for ONE TIME only and we discussed that being open and honest is key to make this work, but I just found out she is going to brake that rule. She said to her friend that this guy who is texting with is coming to town and she wants to fuck other dudes for years so she can’t hold it anymore. She wants to meet with him. That is litteraly what she said. But the most shocking part is that she said she is not going to tell me. So if that happens she is breaking our rules and I don’t think this will stay with one time only from her side.

I have very mixed emotions at the moment, because I don’t like the feeling of betrayal and I want to trust her. I also don’t understand why she doesn’t want to share with me, because she can literally discuss anything with me. Part of me wants to confront her, but that will mean I will ruin this whole process. And I also feel lots of excitement and also feel humiliated and that I can’t control it anymore, which is turning me on very much.

Not sure what to do, but will keep you in the loop. I am open to advice.
Hoi uvasacq, hoe staat de zaak er voor? Ze wil het waarschijnlijk gewoon zelf ondervinden en dan zal ze je wel op de hoogte brengen (denk ik). Gaat ze er voor ben je vanaf dat punt haar cuck en beta male geworden. Hoor ik nog van je? Groetjes, Bull Wil - Zuid-Holland.
 
Update:

I confronted her with the text messages just in time. She said she thought it wasn’t worth mentioning because nothing happened and there wasn’t anything planned. I think she downplayed the messages but fair enough. However it led to great things. Because a few days later the guy surprisingly texted her that he was in town (he didn’t tell my gf upfront). My gf was stressing to the max and didn’t knew what to do. Eventually she admitted that she wanted to meet him and she was getting turned on very much about meeting him. When she was about to leave we had the hottest sex ever. She is still very vanilla and holds her cards to the chest, but I could tell she was extremely turned on. Before the date she said she didn’t thought she would have sex with him, because she first wanted to do a screening. Man it was so hot when she left, I was nervous and excited as hell.

On the date she texted she was having fun, but confirmed she wouldn’t go with him to his hotel. When she got back home I saw her excitement. She told they had kissed and would save the fun for later. But she admitted that this was an extreme success and that she felt really turned on about this idea. That week we had sex almost daily, she was the most horny I have ever seen her. We have a huge thick dildo which she wanted multiple times that week. And to get things in perspective: before all this we would have sex only on time a month and the huge dildo we only had used twice in the past 3 years. She is only talking about sex these days and feels extremely sexy and wanted.

So it’s fair to say it was a succes and she wants more. She is still texting with the guy and the have planned there next date 2 weeks from now. She is still saying she thinks nothing is going to happen sexwise, but otherwise she wants to have my judgement on her nude pics she wants to send to him. I don’t see how there can’t be sex the next time they meet lol. Maybe she is downplaying the whole thing to get her nerves under control.

But here we are, it won’t take long anymore. This is even more exciting then I have ever imagined. I will keep you guys updated.