As far as her going out this last month, she was supposedly going to a small bar that im familiar with, but I did not go spying on her.
The second time she went out.. I noticed on her phone a text from her friend asking if she could get out later. My GF told me she was taking some clothes over to give her friend for her kids. after that she texted me to say she was going for a beer with her. and after that well she didnt make it home til 1:30 am. Listening to the conversation when her friend came over the next time (see below) their timelines didnt match up. Her friend made a statement about my GF dropping her off about 12:30, so there's roughly an hour their that it took my GF to make it home. She gave me a kiss on the forehead as she got into bed.
Then the third time she went out, her friend came over for a little bit and then asked if she could steal my GF to go out and that she would have her home by midnight. She did make it home by that time, but in her call log, about 11:20 while she was supposedly at this bar, the lady friend she was supposed to be with called her. My GF then called her back 6 minutes later.
I was suspicious of this and wondered why her friend would be calling her if they were together. The bar they were supposed to be at is fairly small, so i wouldnt expect a call necessary to find each other.
After talking with my GF the next morning, she had told me that they ended up going back to her friend's house between 10 and 11 to bs.