How do you know if a girl is the one? As a guy, do you get swept off your feet like a girl does or is it more logical? When we first met it was long distance and I fell for her pretty deeply. But then after 6 months of her living in the same city about a year later , I started to have doubts. She is the most genuine kind person and we are very compatible in whatever we do together. At 26 you may or may not have had a lot of dating or sexual experience.