<human>: Hi, my girlfriend and myself have been together since a young age and I'm going to try express myself as best possible here so bear with me.

We're that couple that everyone says they'll last together and we have this far, we haven't broken up once and we haven't really come very close to breaking up. I do love her, but I don't really know in what way anymore? We're best friends and honestly she is a lovely girl that gives a lot more loving to people (especially me) than what she gets and deserves.

We don't go out to parties or anything unlike our friends and because of this we've become really close. I always try my best for her and I like to think I treat her well too. She has family issues and has it hard on herself for a few years and it has definitely messed with her head and she doesn't like to rely on me for everything but I am there for her.

We plan on moving to uni now and will be living together but I just feel like I wan't to go meet other girls, go to parties. This big thought occasionally pops up in my mind but I just don't have the balls to go actually break up with her I just wan't to rely on myself and have no one rely on myself and have new experienced that I've missed. 

 I'm not going to lie, I really want to meet other girls, is that being a selfish? I'd say I'm a handsome fella and she is always saying I'm out of her league, I don't think that way though. But it's an urge that keeps coming back.

I don't know if anything will actually come of this post, but I wan't to be able to live my life without having restrictions. Thanks for reading and obviously it's hard to give some help when you don't know either person you're trying to help.

Could you distill the essence of the text into 1-3 sentences?
<bot>: With gf for nearly 4 years, were very close friends and do everything together but I wan't to experience meeting new girls.