There’s dudes on 2 sides here. Some people say she was going right behind your back and that you should have been harsher with her, others are like “she’s just talking to someone, so what”.
You took the middle ground, which I think was the best here. The only thing is, I wouldn’t have phrased it as a question i.e. ‘do you want an open relationship?’ because it could have actually backfired on you. I think you just should have said “I mean I’m not gonna get all mad/jealous/whatever about it, but if you’re gonna talk to other men, I’ll just start talking to other women then”. Or something like that. Overall though, I think it was handled pretty well.
I think what Iamath said was most important tbh, because that nuance he noted matters:
“it depends did she told you she is not talking to that guy anymore or that she is not gonna talk to that guy anymore”
The only thing now is that she may be more secretive behind your back about this stuff. She did, however, cry though. That suggests that she actually does like you a lot, which means it’s unlikely that she’ll go behind your back again. At least for the time being anyway.
And like the other dude said, give her a bunch of strong orgasms right now. This way you’ll leave a much stronger emotional imprint on her because she’s currently more emotionally vulnerable due to the strong emotions she just experienced; you will be more deeply engrained within her not just mentally, but also physically as well, and can be the start of her associating you with pleasure itself. Think Pavlov’s dogs. Basically, it’ll place you higher up on her ‘High Score List’.
I know this is kinda ****ed up because you’re actually messing around with her psyche itself, but it’ll keep her from acting up again. Plus, it can probably make her become infatuated with you again like how new lovers tend to be. Any time a woman has experienced a very strong/heavy emotion, she’ll usually be a lot more emotionally vulnerable. Note the signs of when this is so that you can permanently leave your mark on her.
Well this ended up turning a lot more Machiavellian than I originally intended...