/cgl/ - Cosplay & EGL

I'm starting to feel miserable around the group of 3 friends I've made from congoing.

We don't have the same sense of humor, I have to hold back a lot of what I want to say since they're fairly sensitive emotionally, they're into the typical Tumblr SJW stuff which I don't particularly care for at all so it feels really hard to joke around with them period and I always worry about everything I say offending them, often feel like I don't fit in at all when hanging around them, don't know why they invite me to things.
I'm assuming they keep me around to help pay for hotel costs and get free photoshoots

One just blew up at me for asking for the money she owed me. She just got a new job and was waiting on her first paychdck, at the time we had to Uber somewhere together and I fronted it and told her to pay me back later, also paid for her dinner since the waiter didn't split our checks and couldn't, I added she didn't have to pay me back if she was still in a tight spot for money, u asked after she got her first paycheck. She gave me the money, but afterwards told me that asking her for the money made her pretty uncomfortable since she didn't receive as much as she hoped for her paycheck and I should have known about her anxiety regarding that, that I shouldn't have asked in the first place, and told me that I should manage my money better since it's not on her to give me money (what the fuck it was my money in the first place...).
There was also another time at a separate con where I was super withdrawn from the group and felt fucking miserable. I received a text from someone in the group a couple of months later wanting an apology from me for acting so shitty during that con. I apparently offended her when I said that I didn't want to watch RWBY (I didn't outright say it was shit, I just said it wasn't really on my radar), she said it made her anxious and that I didn't respect her ability to judge media + me ignoring everyone.

I just wanted to vent sorry gulls.

>Go to anime con in local area
>live in rural state so small
>just anime marketplace and video games basically, tabletop and anime rooms too but not into it
>meet no one and talk to no one

What did I do wrong? Should I cosplay if I actually want to meet people?