Is it normal that i keep having dreams about my old girlfriend?

I keep having dreams about one of my old girlfriends.She was 1st gf and we went out in high school for a little over a year. We broke up (she did more of the breaking up) because she was going to another school and didnt think it would work. It was bad cause I got in denial about the whole thing and did the whole desperate try and get her back right away thing, which I found out is a big no no. We still kept in touch for about a year and half, even when we were seeing other ppl. After things ended with tht girl, things ended with them. (The guy she was with treated her rele bad from wat she told me) and that was about the time she stopped talking to me via fb,txt,calls, twitter etc. At that, funny thing, is about the time when I really started having dreams about her.

So far I've had about 14. It seems weird because I dnt ever dream bout anything and if i do i sure as hell cnt remember so idk y i've been dreaming bout her so much. ( NOT sex dreams btw). Even tho she was the only girl who ever rele loved and cared bout me and I her, i've tried finding someone else over and over and nothing is ever there, emotionally and or physically.

From wat i hear shes working and studying real hard (and not with anyone). So I've kinda come to the conclusion that shes ignoring me cause shes busy with...well life and going places and i guess I'd only be a distraction to her right now. Well as the site says...(also im 20 shes 19, but I think age is a bit irrelevant here)...Is this normal?