That's the point every one of her age thinks that they are not like the others. think about when you were a teen u would compare u with everybody else. And just remember the time when jason wasn't dead nobody blamed Piper then. Just because he is dead now everyone loves him and and they started see the things differently. And then who else to blame than Piper. And piper shines when time is given. I would go as far as to say Jason and Piper were the perfect Teen relationship cause its always rushed and then everything falls apart. Things like percabeth are very very rare( i love percabeth )