born 1972 she is 1980

been seeing a girl as friends as she likes to take things slow, she has a busy work life and we catch up when we can , from the beginning she has always said going out as friends is best before having a relationship. i want more and have made little hints, she has moved to adelaide this year as her work see her move around the world. do i keep hope and just hang in there ? or do i just move on and not worry about trying to build something more