Ive never seen such a guy like TheException, who constantly defends women hanging out ALONE with other men. Every single case Ive seen, where the woman starts hanging out with some new guy, its always been the death knell of a relationship.
OP should just kick her to the curb now. Not be some chump who sits around, says nothing, and allows her to hang out alone with new men without consequence. I for one wouldnt disrespect my gf by constantly hanging with some chick from work, and posting pics all over social media.
Its one thing if she was catching up with an old friend from time to time. Its a totally different ballgame when shes frequently hanging out with some orbiter from work.
Let me tell you this....women dont try this kinda crap with a man they are afraid to lose. They dont try this crap with a man they know isnt afraid to walk at the first sign of disrespect. I had a girl who was very, very into me...and she says the following, during a few conversations we had about how I expect a gf to behave--"Jay, wow...youre harsh. You really dont play around. You'd really just leave a girl like that? I dunno, ultimatums seem controlling"
To which I reply "Im not controlling anyone. I know what I want, and I know what I feel is respect and disrespect in a relationship. A woman is free to do what she wants, and Im free to leave if I dislike how the relationship is going. Shes free to do the same as well if I behave badly". Then this girl simply says "yeah, true...I feel you. I just wish you werent so matter of fact about just quickly up and leaving a girl".
Guess what? A couple weeks later she was downright begging me to give her the D...but I knew she would get sprung and wanted me to wife her up. So I just avoided that drama. The grand point being, from what I have seen, is that women respect and are attracted to a strong man whos firm in what he wants from his woman. B!tching at your disrespectful girlfriend solves nothing. Maturely and calmly telling her to shape up will work, and then calmly leaving without any drama reinforces your stance.
I establish my boundaries before a commitment starts. If a woman disrespects those boundaries like your girlfriend has, Id tell her "listen, we talked about this before we got together. You can do what you want, but you know what the final outcome will be. You do what makes you happy, and Ill do the same." And this is all said in a calm, matter-of-fact tone. And this IF I didnt already break up with her for daring to think she could pull that ish with me.