Firstly, lets begin by speaking the way they taught you to in English class, not the way you speak amongst your peers. Reading this grated on my nerves.
Moving on- your feelings of agitation are understandable, you put your trust and affection into someone who is abusing it, and you feel betrayed. Nothing you can do short of moving on, ignoring those who aren't listening to you, and seek friends outside your daily hang outs.
I'll assume you're in middle/high school, so it's important to realise very seldom do relationships make it past that point. Hold your head up, and keep going. You'll meet someone new, and this girl will mean nothing in the matter of 6 months.
Meanwhile, focus on your studies, meeting new people, and set goals for yourself. There's no sense in jumping on this your side/my side bandwagon. If these people you'd call "your friends" aren't letting you have a say, and are getting too involved, they aren't really your friends.
Take it one day at a time. You'll pull through.
Give me something I can take,
Can take to make the memories fade.
Poison kiss, remember this,
I never was meant for this day.