I (32F) went out to a pool hall with my newfound friend (?M) and his girlfriend was PISSED. I met, we'll call him John, a few weeks back while at my younger brother's metal concert. We were in line next to each other, waiting to get inside, when my brother came up and we were introduced.

Later that night, I saw him around the mosh pit, and he's a bouncer, a bigger guy, and I thought it would be fun for us to go into the mosh pit together.

After the concert, we talked, and he didn't mention having a girlfriend until after we exchanged socials. I thought that was kinda odd, but I don't know their relationship and just shrugged it off. I wasn't necessarily looking to talk to anyone like that anyway. Cool with making new friends.

Fast forward a couple of weeks. He messaged me pretty much every day, saying good morning and goodnight, and just asking about how I am doing, etc. We get to know each other better, and he seems cool. Never says anything inappropriate, friend vibes.

The night I am questioning, I had just gotten off work and was considering going out to a bar or something. I was telling him I was probably going to ask my family friend to take me out since I don't drink and drive, and he (my family friend) is usually the one I go out with. John said he knew a chill place to go and that he'd be willing to pick me up. So, I agreed.

He came to pick me up later that night, I was feeling a little awkward when he texted me asking if he should knock on the door when he got to me. For context, I am living with my brother and his family while looking to buy a house. I just moved back to my hometown. I jokingly said, "What do you want to meet my family?" and he didn't respond, the next thing I know, he's just knocking at my door. He comes in and meets my family, and then we leave.

When we get to his truck and drive off, he tells me, "You're going to get to meet my girlfriend." I didn't know she was coming out with us. I am kind of thrown off only because he maybe brought her up like 1 time over the weeks of us talking. I don't know their relationship or how it works, so I never really said anything. He did say she knew he was talking/texting me, so I figured that's a "them thing" and they know where their relationship stands. I tell him that's cool, and we keep going to the pool hall.

I kind of start to feel uneasy and decide to ask him things I know I should have asked him before, like how long he has known my younger brother. He says only a few months, which makes me go quiet. He cracks a joke about that "not sounding too great." I was thinking, "Cool, I'm gonna get murdered."

Before we get to the hall, his girlfriend calls him. The phone is loud enough, I can hear that she doesn't sound happy, but I can't make out what she was saying. She is already at the bar, and he is explaining to her how I don't drink and drive, so he had to pick me up. At this point, I am wondering what the hell I got myself into.

We get to the hall and go in. I get ID'd at the door (this comes up later in the night), and they stamp both our hands. I follow him to the table where his girlfriend is, along with another couple. He introduces us all to each other and then asks me if I want a drink. I say yes, and we go to the bar. He buys both me and him a drink, and then we go sit down with the group.

For the next 20-30 minutes there are a lot of questions for me from the girlfriend and the couple at the table. She brings up questions about why we both have stamps and she doesn't, and makes a comment about having to pay for her own drink. Vibes aren't great. John leaves the table after a bit and is off talking to other people.

I am married, separated, and the girlfriend was asking about my husband because apparently she asked my little brother about me, and all he told her was that I was married and had kids. When I said that my husband and I were not together she seemed to get slightly upset.

She moved to the seat next to me and is LOOKING ME DEAD IN MY PUPILS when she says, "I'm jealous of you. I don't know why I am jealous of you, but I am. You're texting my boyfriend all day. (he texts me... I don't initiate conversations with him) And he shows me the messages, but I am jealous. I wasn't going to come out tonight but he told me you were coming out so I did too." I just blink and stare at her, and then she says, "Let's play 20 questions." I say that's fine, she can ask me anything she wants, but she couldn't think of anything at the moment.

By this time, a pool table becomes available, and we all go over to play. I feel uncomfortable so I sit back and let them (him and his girlfriend) play a couple games of pool (even though she was insisting me and him play a game). But while they're playing, she barely seems interested. She comes and talks to me every chance she gets.

Eventually, she is super pushy and tells me to play a game with him so I do. We are halfway through playing when she gets upset and decides to leave. I go over, while she is collecting her stuff, and ask her if everything is ok, and she says she just has a health issue and didn't take her proper meds and needed to go home, but seemed upset.

He walks her out and then comes back. We play a couple more games of pool and then leave. He takes me home and that's all.

I tell my family friend about my night and how crazy she was and he says that she has the right to be upset that I was on a date with her boyfriend. I don't feel like it was a "date" but AITA?