<human>: Can you summarize the given text in a few sentences?

I'm a 15 year old guy and I very recently broke up with my 15 year old girlfriend. We would have been dating for a year on the 16th of October. There were many reasons I had to do this, these two being the most important: 

* I had started fading out of the relationship for about a month or so. We started to run out of things to talk about and things were getting boring.
* If we continued dating, things would have only gotten worse and the break up would have been more painful for the both of us.

Even though I am the one who ended the relationship, I still have some feelings for her (not incredibly strong, but still prevalent). I still care about her greatly and I want her to be okay.

She is a great girl, but she has been mad at me and incredibly upset because she says she never saw it coming. She has posted some things on facebook that have hurt me and she accused me of not caring about her. 

Because she feels bad, I feel bad. I know that I caused her to be upset and I just cant seem to get over this guilt and her inadvertently making me feel bad.

My biggest concern is that we might not be friends anymore. I want to maintain a friendship even if it wont be for a while.

Any advice about what to do would be beneficial. This is my first big relationship and I am completely lost on what to do.
<bot>: I just broke up with my gf and I feel bad. I want her to be friends with me in the end. Help?