Boyfriend’s girl friend makes me uncomfortable

My boyfriend cheated on me before. Oddly enough, we were ttc and he cheated, then we found out I was pregnant. We’ve tried very hard through my pregnancy to make things work for our daughter, and over the last couple months things have been great. I’m due within the next month, and our relationship has been better than ever. He’s been out to local bars a few times during my pregnancy, and it hasn’t bothered me. We live in a small community and have the same friends, so he’s kind of forced to behave or it would get back around to me. Tonight I went out with him because it was a good friend’s birthday, and had a great time, until (let’s call her Allie) showed up. Allie showed up and immediately made a beeline for my boyfriend. Then she saw I was nearby and left. Then as I was walking back into the building, I caught them mid-hug. My boyfriend is not touchy feely at all, he won’t even really touch me in public and we’ve been together for almost 5 years. I thought it was odd, but didn’t say anything. Then I left the bar to DD some friends home, and when I got back, I had 3 friends come up to me and tell me that Allie hurried over to my boyfriend, and he put his arm around her to talk to her. One of my friends called her out on it when I wasn’t there, and she said “oh he says he just sees me like a sister, it’s fine”. I’ve also seen in my boyfriend’s phone where she messaged him after nights out about how sick she is or about how much fun she had out. I mentioned them to him once, he said it was weird, but didn’t respond to her. I checked again tonight and he deleted all past messages from her, which he doesn’t just do unless he’s hiding something. Also, every time I stop by to pick my boyfriend up, she’s nearby him. She confronted me tonight and asked if I was mad at her (after my friend said something) and I told her I thought she just seemed awfully friendly and I personally wouldn’t just hug and touch other girls’ partners. She got upset and told my boyfriend, then left. On the drive home, my boyfriend chewed my ass. Apparently he’s allowed to be friends with whoever he wants, even if I’ve mentioned for months that it makes me uncomfortable. I’m also apparently just an insecure bitch and need to act more like an adult, because he’ll talk to and hug

whoever he pleases. Even though he hasn’t ever been friends with this girl before until he started going out to the bars without me. Long story short, he’s passed out in bed snoring, and I’m having a panic attack and crying on the couch at 4 in the morning because I feel like shit and don’t know if I’m in the wrong and just super moody, or if I’m justified in being upset that he took her side over mine after I expressed multiple times that I was uncomfortable with their relationship.