Should i break up with my girl friend? part 2

We have been together for almost 7 months, she was a dick the first few but now she is perfect. but i cant forget the dickyness of the first few months and it really fucks with me. we always fight because we are both over jealous and i find myself always checking out other girls and thinking about talking to them and maybe trying to hang out wtih them. i am 18 and she is 16.

after everyones responses i did some thinking, that she isnt perfect. she used to be like she was into me 100% and our lives were fun and exiting, now she comes over and we is like lets take a nap !!! and im like anything but that, hell lets go to the zoo. i feel like im just wasting my time now when im with her and i feel the urge to cheat on her sometimes or just meet other girls and have hte “i just met a new girl” flirty exiting feeling again since i have no excitement anymore.