I don't know why, but Kyouko and Katsuya's relationship never bothered me when I was younger, but now I feel a bit uncomfortable. I know love has no boundaries, but I feel like the age when they fell in love with each other was too young...if Kyouko had been at least in her last two years of high school, I probably wouldn't feel the same way about the start of their relationship. I re-read the words "middle school" several times just to make sure I wasn't hallucinating. Then I remembered that she didn't (go?) graduate high school. Well I don't doubt that such relationships happen in the world, but usually it's not a happy ending.
But it really was fortunate that Kyouko met Katsuya, I wonder how she would be had they never met. Some meetings really change your whole life.