Is this relation start ending???

i m 20 & my girl friend is also 20. i m wit her from last one & half year.in startins wen we were in school we taked a lot and spend hours on taking. now i m doing H.M and little busy & now we tak only few minutes on phone and hardly meet once a week.i love her a lot but on other hand i m afraid tat these less taks are symbol of ending.