Hi Clayton!
Weclome to SR! How new in recovery are you? Within the first 6 months to a year it is hard to be around alot of drinking people. So, yes I had to cut a few of my peeps from FB and other such sites.
However as more time went on it got easier to be around those that were drinking. So, if you aren't there yet... or if you never get there. That is okay.
We are all different in our resource levels.
So, resentments... I work really hard to look at myself before I look at the other people. What is it about your gf situation that is bothering you? That she is lying or the action itself? The fix what is broken in you... and move forward... by being straight up with her. Or by breaking up. That is your call.
Best of luck!
Saliena