So confused right now about a friend please answer!?

Okay so I am Sabrina and I have a friend whose name is Molly I'm in 10th and she's in 8th and she has a BAD REP like baaad she is a B to everyone and smokes alot I'm totally oposite but she has a really ruff life so I help her and I am friendly..her best friend name sam is dating Tyler sam is in 8th and Tyler is in 9th grade..so Tyler and sam are dating and there happy and someone frame me trying to ge them to break up and I'd never do anything...so Molly got all pissed so did sam and Tyler..and they are calling me mental so this 8th grader who is crushing on me said e will take the blame so they won't be mad at me..I didn't think that's fair so he did that for me...so Dylan texted Molly saying " it was all my fault not sabys" and Molly said " okay but I'm sill blaming sabrina an being a ***** to her" me and Molly recently got inna fight thing and haven't talkerd in a while how do I let mollly sam and Tyler know it wasn't me or dylan?! And should I go along with what Dylan did or is that not fair to Dylan?!