<human>: What is going on with me? I am 25(m) and my GF is 22(f) 

I have been with my GF for over 3 years.. started out AMAZING, still is ok but we hit that rut about a year ago.. we started fighting more, a lot more. Our biggest issue is she does not agree with my career (Law enforcement) as she is well on her way to med school, she gets pressure from family (assumption) that I should do something more 'prestigious'.. but LE is what I love and it has been my passion for sometime.

But what I came here to ask.. there is this girl I used to work with, for about 6 months (I am newly on the job with LE), we talk here and there and sometimes on facebook.. I honestly dont know her, but she is a very nice person.... I cannot stop thinking about her, ever, no matter what I do. She is not my 'type' either, she has tattoos, lives an hour away, we both are very different people, but i don't know why i can't get this girl out of my head. Nothing has been expressed by either of us that there is an interest.. its just weird to me.. is this normal during a rocky relationship to feel this way for other women, maybe I am just projecting all my positive traits i believe a girl should have on this girl from my old job?

Can you condense the text into three sentences or less?
<bot>: GF and I have 3 year relationship, rocky for the past year, cannot stop thinking about other girl from work, for about 4 months now.