When I was younger I cheated on my then girlfriend fairly often, and I didn't feel guilty at the time. You're only young once so I figured it is best to take advantage of my youth, especially since they knew I was in a relationship and came on their own will. ;) But then she found out and it REALLY got to her. So much so that we could not work it out and it more or less changed her. Sadly that was the first girl I actually cared for and the one I actually wanted to settle down with. So, from then and there I decided cheating was not worth it. Even if you don't feel guilty you have to consider how it affects others (there are a lot more stakeholders than just you, your girl and the other woman). To me, if you cheated on your girl it's a sign something is either wrong on your end or her end, and that should be enough reason to reevaluate your relationship.
Playstation = The Beast from the East
Sony + Nintendo = WIN! PS3 + PSV + PS4 + Wii U + 3DS
