I just went through the same situation... g/f dumped me cause she didnt have the same feelings for me....she still loved me but just as friends. She did it on MSN though... so do call him on the phone or do it in person... its hard but still.
Its hard to say and and its hard to take it.. but it has to be done if you really feel like it has to be done.
If its that little bit of "spark" that your missing... maybe going out on a romantic weekend or holiday may just restart what you felt to start with.
Good Luck with whatever decision you make.