Unaltered friendship

"Y/N and Peter knows each other since they're children, and then they met Stacy. They became the best "trinity". But it's time now. Time for Y/N to go back to Queens, were she lived before. One day, she had to move on in Bronx, when all broke down. Leaving her best friends. Now she's back, nothing has changed for her, except that she hasn't spoke with Peter since she leaved...
But she doesn't know that things do have changed. Why Stacy and Peter do not seem to be the same as before ? Especially Peter ? something changed about him...
Everything has changed, anyways..."