For some reason, I only became close to 3 classmates.
I had a small class, and mostly girls. I became friends with only one boy, and we remained friends after school. I don't really communicate with my classmates, only if I happen to see them.
And not long ago, it was 10 years since graduation - we all got together, and it brought back a lot of memories... We spent 2 days together, until our parents took us home :) Everyone left happy and in love, that's how it was.