<human>: Can you condense the text into three sentences or less?

Title is most of it. 

REALLY shortened detail of the relationship is she was my best friend from the start of summer before high school for 2 years, spent all our time together, (she lived down the street). she knew I liked her, and we had a little fling after a year and some rough patches, but she never considered it a real relationship and started dating someone else. That started a HUGE fight, we didn't talk for 2 years. She comes back, tells me her life has fallen apart. She needs me to help her. So I have her around again and she makes moves on me. At first I'm hesitant, but I eventually give in. Our first few months are great, and I already loved her as a friend, now we were in love as a couple. It was every thing I'd hoped it would be. But things started happening, she couldn't let go of her old life,  and her home life was less than stellar. The stress got to her, and she took it out on me. We fell apart. 

I did my best to treat her as lovingly as I could, and my family and I took care of her and loved her as our own. She was well loved and cared for. She treated me VERY poorly towards the end and a million things before the relationship,  but what we had still left an impact on me.

Here's the deal: nearly a year after our break up, I still think about her. I ask "what is she doing? Is she happy? Is she safe? Does she think about or miss me like I miss her?" I still dream about her. And it hurts to think about her so often. 

Is this normal? Is it bad? Is there something I can do?

If anyone wants more of the story, I'm willing to share, it's a doozy, it's just very long.
<bot>: I still think about my ex-girlfriend nearly a year later, is it abnormal? If it is, how do I stop?