There's a difference between sexual desire and love. Sexual desire is a strong physical excitement. Love is a powerful caring for someone else. Love can exist without sexual desire, and vice versa. Many people are happiest when both love and sexual desire are shared by both partners.
Sex involves responsibility.
Sex partners need to share responsibility for birth control. They should also protect each other from infections like HIV, gonorrhea, herpes, genital warts, and chlamydia. Communication is very important. Sex can mean different things to different people. But it is not a good substitute for conversation.