Say you meet this guy and man is he hot. the sparks fly and he is finding you hot too. At the end of the evening, you find yourself in his bed, having a wonderful time. you don't know jack squat about him except he has great hands and kisses like there is no tomorrow. that is sex.
Same great guy just told you he loved you and you told him you loved him. Again you are in his bed but this time, those great hands aren't driving you crazy, they are worshiping you. you see, feel and taste a sort of difference in the vibe in the room. The foreplay is gut wrenching, the orgasms bring tears to your eyes and you discover that he also has felt the wonder if it. THAT is making love.