Probably a post in itself as many of us are uncomfortable in new groups, especially after certain bonds are established from previous events. I came alone in 2009 without knowing a soul, not knowing screen names versus real names, etc. It takes a while to get comfortable and remembering everyone a year later gets tough if you don't stay in touch.
I hope you make it. We all have something in common, whether the TA, the movie, the run, whatever. I don't think anyone is intentionally left out. There is a place for all who attend.
Any day above ground is a GOOD day!!!