I'm going to add a little backstory before I move into my present day problem. If you don't really care you can probably skip the first bit and move on.

About 4 years ago, I met this girl, wasn't interested in her but flirted anyway. I could tell she liked me because she reciprocated my Kino and etc About a year later, I had stopped flirting and grew to like the girl and asked her out. At this point, I could sort of tell she wasn't into me, but I asked her out anyway. I got blown off and made the mistake of staying friends with her anyway.

Fast forward 3 years of close friendship later and my present day problem is this:

I still like the girl and would like to go out on a date with her, but I'm not hung up on her in the least. I've gone out with many girls, had sex with a few, and I'm still living my life the way I enjoy to, with a lot of accomplishments I'm proud of. This girl is a really good friend of mine at this point, very supportive, fun and honest, and I'm the same with her. My issue is that I don't want to be interested in her anymore the way I am, but I want to remain friends with her. She's a quality friend of mine even when I look at it from an objective standpoint. It's not that I don't want to be attracted to her sexually, I am with many of my attractive girl-friends, but I just don't want to be interested in dating her anymore. Does anyone have any sort of advice that could help me here? I'm sort of stuck.