I was just interested as to whether anyone has lost friends or have had people drift away from them as a result of school. Either due to jealousy or the lack of time thing.
When I was doing year 12, I had a friend who kept being really condescending everytime I got a SAC mark back, saying things like "you just got lucky" or "I'm still better than you" and stuff. At first I thought it was a joke so I kind of just laughed if off but it was getting more and more annoying and insulting (or I was getting more sensitive due to tiredness...). So I confronted him, accused him of being jealous and we've only spoken a few times since.
Also, my best friend from year 8 to year 11 kind of just stopped talking to me in year 12 or would be rather passive-aggressive towards me. I have no idea if that was because of school though or because I offended her some other way (although I can't think of any instances where I would have, it's probably quite arrogant of me to think a person has stopped talking to me because they are jealous).
I was also talking to a girl in my UMEP class last year who was saying that her sister got a 92.something and all she did was work. She basically cut her friends out of her life and accused them all of being jealous whenever they confronted her about spending too much time studying. So, I guess it can work both ways.
I think people generally are less rational during VCE and they let the idea that they're being ranked amongst the state really get to them. Thankfully I still have some awesome friends who are great fun though.