Am I Wrong For Wanting To Hang With Other Women?

So before me and my girlfriend started dating, I used to have female friends that I'd hang out with from time to time. Since we started dating I've ceased to do that because I'm always with her. But I'm finding lately I've been wanting to engage in activities without my girlfriend and with other women. Nothing sexual or intimate, just everyday activities like go to the zoo, movies or even lunch. I know it sounds weird, is this wrong?