Last night the girlfriend says she is going out with a female coworker for a drink, says her coworker has to pick up her kids at 5. I get off work about 5:15, dont hear from her which is unusual, so I try calling. Can't get a hold of her to save my life, and I am starting to get worried because she works 45 minutes away from home. Finally get a hold of her and come to find out she is with two of her coworker guy friends. One has a g/f the other doesn't. I someone flip out and say some things that were mean because she said she wanted space. After this she says she wants to come over a talk and whatnot so I agree to this and hangup. Fast forward an hour later I text her to ask where she was at and when she was planning on coming home. She tells me she thinks I hate her and am going to go out and do something stupid that night. So I try to call her and she won't answer and turns off her phone. Right before that she tells me we need a day to think and she is going to her female coworkers house. So I try calling her coworker and texting her and basically getting the run around which was making me angry. Come to find out she was with the two guys and never went to the female coworkers house which now I feel like an idiot. She tells me she doesn't know what she wants with us anymore(up to this point everything has been pretty good in the past year, so I thought). I find all this out last night talking to her in the car and that she lied about a couple nights before who she was with, these two guys. She tells me she lied because I would have flipped out which is probably true but now I am really angry and upset because she lied. She says nothing is going on between her and the single guy, he is a church going guy, all this yadda yadda yadda. I believe her that she is not cheating on me but I feel the intentions of this guy are not what she believes and will not believe me. We talked this morning for a good amount of time and she says she wants to work on why she thinks our relationship has not been the best the past few months. She says we don't do things like we used to, and I agree with that and told her we need to work on things. She says we need more time apart because we do honestly spend too much time together. She wants to go out more with her other coworker friends. I understand. Here's where it gets tricky, I tell her how I feel about her hanging out with this guy. She is going to a work gathering tonight and he is going to be there. I told her to go and have fun which she just needs some space. I tell her its ok, I trust she wont do anything while we are together. She also tells me that we were supposed to go to some haunted houses with other coworkers in a few weeks but now she does not want me to go because of the incident last night. She says she thinks it will be weird because they knew we were fighting, my only concern with this is this single coworker is going to be there. I asked very nicely that she not go unless I go. I told her I'm not trying to control her but she needs to accept my wishes because she would not be happy if I were doing the same to her. She tells me she will think about it. Now I am supposed to go to her house tomorrow to help her with some stuff and watch a movie. I really want to call this guy and basically tell him to step off but I don't know how well that would go down. Give me your advice OT.