the silent fight

there are a group of kids in my school, let's just say their L. and there are also an ex-B class that still sticks together until now. you might wonder what is the connection between this two groups. well, they're silently fighting right now. wonder what's silent fight, read this story and get ready to think hard...
i know this problems from both sides. first, i'll start from L. in two day's we are going on a school trip. most of the L kids, are in A class. the A class' bus is the same as the B class'. the L kids don't want to be in one bus with B class because most of the ex-B class are in there. eventhough one member of L is in that class, they still don't want to be in the same bus as B class. so, they talk one of their close teacher, Mr. X. Here's a few word that i hear when i'm standing beside them, "we don't want to be in the same bus as B class, Mr. X" "Well, you have to talk to Mr. O, kids. It's none of my bussines to change that" "Who chooses the bus anyway? don't they know our enemies?!" "ofcourse they don't know who your enemy is, kids" "well, they should know". after that i left.
after hearing that unpleasant conversation, i go to the elementary building. there, i meet a few of the ex-B class. they all have a very bad faces. so, i ask them what happen. then, they tell me their stories. coincidently, their problems are with L. here's a few words that they tell me, "you know what, i hear L says that we, ex-B class never socialize with other class" "yeah right! how about them? they always hangs out with L kids. and they say we never socialize" and then i say, "oh my God that's horrible" "yeah i know. and do you know what, when S walks pass them, one of them looks at S like she's somekind of enemy or something. urrrggggh!" and then they talks and talk about this until everybody goes home.
this is why i name this blog, the silent fight. it's because they fight without saying a word to each other. they only stab each other's back continuosly.
what do you thiunk about this? which one's right and which one's wrong?