<human>: Can you provide a brief overview of the text?

My girlfriend just explained to me minutes ago that she believes no one cares about her, and that all friends eventually betray you and leave you behind. She plans on cutting off all contact with her current highschool "friends" who have hurt her in so many ways, and I'm trying to convince her that there are better people out there.

She's stubborn, so I know this isn't easy. It's never easy when you've lived around people who couldn't care less about you. I understand why she thinks this... but I want to do everything I possibly can to convince her that it isn't true. I want to convince her that friendships are one of the greatest aspects of life and are very important. I want to convince her that there are people who do care about her such as me and my family. Heck, even some of my friends care about her by asking me how she's doing on a regular basis.

So I ask you, reddit, what do I do? What can I do to convince her that she can make good friends in the future regardless of her past experiences..?
<bot>: My girlfriend believes no one cares about her and all friendships are meaningless and die quickly. How do I convince her otherwise?