Betrayal/ broken friendship qoutes?

Me and my bestfriend, let's call her sally, have been friends for like 5 years now, she's a junior n I'm a freshman but shes 16 n im 15. I've lost a bestfriend (let's call her sam) last year and I cry every once in a while. I use to go to sally for help, support, or for some cheering up, but sally wouldn't really help:/ she's never really there for me at all. So I don't go to her anymore. But there's a boy I liked since last year and I always went to sally telling her that I like him so much n I have the biggest crush on him, and he calls me his bestfriend so I didn't really want to push it but recently she told me she liked him and I felt sad because shes really pretty n I knew he would go for her. And I started crying because I found out they've been going out recently, I found out through facebook on the "this person went from single to in a relationship with this person":/ it hurt but idc that their going out, I'm hurt because she knew how much I liked him :( n she went for him..she calls me her lil sis n bestfriend... n I'm crying because what bestfriend does that? She wasn't really there for me and she went for the guy I liked a lot and for the longest time...is their any qoutes about betrayal or really good broken friendship qoutes? Thanks, sorry that this was long.