Is it wrong to break up with my gf because I want to sleep with other women?

Don't get me wrong, I love her till death, and she's perfect. We lost our virginity with each other and I know I wanna spend the rest of my life with her. We been together for a year and 7 months and I just have the urge to have sex with other women. What should I do?... btw I'm 20 she's 19
14 answers 14