How can i keep my boyfriend hooked this time round, and stamp out the rumours?

Right, nicknames are gonna be A, B, C, D & E. A is a girl in a relationship with B, and C is a gril in a relationship with D. E is one of A's friends. I'm trying to keep this simple. A thinks B, is always with C, instead of herself. So A talks to E about it and E says she'll talk to B about it. When B finds out, he tells C, and a load of his mates, all his mates bombard A with questions about it. The story gets completely twisted. BTW A & C ARE FRIENDS. The day gets too much for A, so A, takes the next day off school, her and B have now split up because B said they should go on a break, and also called A a **** and a to E, because she said about him being with C all the time. C, starts accusing A, of being all over D, because A knew that D was also going to be off school, cause he was gonna' skive, a mive argument started out with A & C, and C told A to stay away from D. Now A is back with B, how can A keep B, hooked onto her, so she doesnt have to go through all that again, or not be so wary/jealous of B being near C? SORRY ITS REALLY LONG, YOU DONT HAVE TO ANSWER BUT I FEEL ALOT BETTER NOW I'VE ACTUALLY TYPED IT ALL OUT LOL. xxx