This is where I get confused in the setting boundaries vs. eating sh!t sandwiches. Between standing up for myself and playing games by trying to pretend like her being on dating sites doesn't bother me. I feel like it is disrespectful to me. And this isn't even taking into account the OM. I've been a "nice guy" for so long I'm fighting the urge to swing to the other side of the spectrum.
So what is stopping you? This is rhetorical because i know the answer. The question is what are you afraid of Salty Dog?