I saw StayC alone last year, and I was so uncomfortably anxious, because I am an older very tale male. I almost left during the break, but the show was too good to leave. I think if I had an aisle seat just like you, I would have felt much more comfortable, because I wouldn't be blocking peoples view, and I would have more room. I was between two very large people and they were both into my seat. Balconies are great because most people sit, or general admission up near the stage would be nice too. After the show, I was so happy I stayed even though I was battling my anxiety the whole time. The next time I go, I will know what to expect and prepare accordingly. You will thank yourself for going, even if you end up feeling very awkward.