Nostalgiac, Hopeful, and then PO'd

I miss my old best friend.  We don't talk or even look at each anymore, and lately I've been feeling especially lonely without her.  Don't get me wrong, there are good reasons for why I am not affiliated with her anymore, and she certainly was not a good friend, anyway.  But I guess we just had a strong bond after knowing each other for about thirteen years, and one day it just ended.  It was for the better, most definitely.  She held me down and made me a worse person, and we both were pretty much already done with each other when the time came to part our separate ways.  I know that God has waiting for me another best friend that I will be closer with and a better influence, also.
I guess this has all been coming out lately because I'm about to graduate (my last day of high school was yesterday, actually), and I've already lost almost all my best friends this year.  I also don't even know if my boyfriend wants to be with me anymore.  That's a whole other painful story.  He used to tell me he loves me, and now he doesn't.
He used to text me in the middle of the night how much he loves me, so when I woke up in the morning I would check my phone and see a handful of really beautiful messages to start my day.  Now, he only texts me in the middle of the night if he's angry and he wants to say nasty things to me without having to deal with my responses.  It's a total turn around.  He knows I love him and I just don't know if he loves me too anymore, and it's tearing me apart.  And when I try talking to him about it, he gets super defensive and finds a way to turn it around and make it seem like my fault. I want him to love me, but if he's never going to, I don't want to stay with him and keep getting it hurt.  Which is easier said than done, because right now, he kind of is my best friend, and I would have to lose him, too.
God is the only one that cares about me.  Jesus died for me on the cross so He could be with me.  My boyfriend?  He got me marshmallows on our one year anniversary and got defensive when I was upset.