<human>: Can you condense the text into a few key points?

So yesterday I broke up with my girlfriend of one year. She was my first love, kiss and the girl who took my virginity. Towards the end we were having frequent arguments, struggled to get on well and had too many differences in opinion. I had been considering breaking up with her for a while and yesterday it climaxed and we just decided to separate. We did it over the phone (unfortunately) as it was an almost spur of the moment thing and as soon as it was done I put the phone down, closed the door and proceeded to sob my heart out.

I didn't know I would be so upset as I thought it was what I wanted, but now I'm really confused. I saw her today at school (that really doesn't help, we're in the same registration group) and she gave me back some stuff and I almost burst into tears there and then. I'm normally an emotionless person but this time it was too much. She gave me a letter as well and she wants me back and for me to change and come back to her and make everything well and good like the start of the relationship.

I don't know what I want. That's the hard bit. I'm stuck. I've always been pretty good at sorting out my thoughts but for some reason I can't now. There are so many different things floating around my head. A part of me wants her back, but a part of me says to just leave it be as the relationship wasn't working. A part of me says I should go out and meet someone new but another part of me says that I shouldn't get a girlfriend and just stay single as long as possible so I don't get that restraint. It's really confusing and I need help. Please, what do people think of this? What did people do for their first love?
<bot>: I broke up with my girlfriend of one year, my first love, on mutual terms but I don't know what I want to do next; whether I want her back or not.